Here's an example. Let's say that you don't know how open source works, and I told you the following:
Why are you in Lemmy? It's open source so any hacker can screw with it, and infect your computer with viruses. You'll never know, right?
That's FUD: fear, uncertainty, and doubt. It's a disingenuous tactic to convince you to not do something, based on the following:
You fear a certain outcome. In this case, a computer virus.
That fear is vaguely associated with something that is uncertain for you. In this case, how a hacker could use Lemmy to inject viruses into your computer.
The odds of that outcome happening are doubtful; it may happen, it may not, otherwise you could call me out for not happening. In this case, even if you don't get a virus from using Lemmy, I can still say "well, some people get it, some don't, but let's play it safe and avoid Lemmy."
This shitty strategy is fairly used in the tech industry because most people are clueless about tech, but they know that it has a big impact on their lives. However you'll also see this in politics, religious debate (Pascal's Wager is FUD), and others.
Yup. There are reasons to use a VPN, mind you; but they involve the person actually knowing the risk, when it applies, and taking a cost vs. risk judgment. The FUD in those sponsors is basically "you don't know so you might be at risk, subscribe to our VPN juuuuust in case".
That's an exaggeration though, most of them are coming at you with the 'hey! You can watch netflix germany now!" rather than 'hackers are coming to get you'
I'd say the 'D' (hah!) is more about making you doubt your position or thoughts on the matter. In your example, it'd make you doubt your choice to try using Lemmy, because of the fear and uncertainty.
Canonically the "D" in the acronym is understood as "doubt", as you can see here, here (2 of 2), here. Division and infighting play no direct role here.
Uncertainty and doubt are synonymous.
They do overlap but complete synonymous are extremely rare. And I believe that, in this context, they refer to different things - the uncertainty as lack of knowledge on how something works, and the doubt on the outcome itself. (@DeltaTangoLima@reddrefuge.com offers an alternate explanation, where the doubt is ideological.)
It entered tech lingo way back in the 90s when Microsoft was fighting an early wave of Linux on desktop. They would troll and present themselves as a reliable alternative.
They weren't the first to do it. IBM's unofficial motto in the 70s was "nobody gets fired for going with IBM".
Others have answered it pretty well, but here's a more specific example:
In the long, long ago, IBM was the biggest seller of computer equipment, and by a wide margin. They alone decided the majority of standards in use, as well as what was coming soon. Anticompetitive monopoly tactics were standard there. For the vast majority of customers, you absolutely HAD to be compatible with whatever IBM was selling.
When one of IBM's competitors would introduce a new and desirable product, IBM would often issue a press release. They would say that they have something similar in the works, and it won't be compatible with the other brand. The safe option would be to wait for IBM to release theirs rather than take a risk on a whole new ecosystem. This was all despite the fact that IBM never actually had said product in development.
As a result, the customers would be afraid of being stuck on something incompatible, with an uncertain future. They wouldn't buy it, but they would continue to buy their existing IBM options. Eventually the other product would fold (proving their fears correct), and they'd forget what IBM promised.
It's a modern kind of shit talking employed by large corporations in conjunction with astro turfing (pretending to be an unbiased commentator, when you're really as biased as can be) to dissuade people from going to a competitor.
Because saying stuff like "I dunno dude, there's been reports of a lot of problems with Product X" is a lot more persuasive than "Product X sux!!!", especially when you don't know the poster was paid by Company Y, a competitor, to say it.
It's common in communities where rigid adherence to a set of beliefs is necessary to enforce cohesion. It's commonly used to avoid engagement with "Facts U Dislike" (haha) by terminating all meaningful discussion.
Part of a flat earth forum and you're posting an experiment you performed that suggests the earth is round? You're spreading FUD that should be ignored.
Posting on a crypto shitcoins discord about how this kinda looks like a scam and maybe it's not a good investment? That's also FUD. You're just mad that everyone else is going to be rich.
I get that web searches make finding knowledge easy but it kind of disturbs me that we shame people for not doing so and basically tell them "just Google it and shut up!"
Are we supposed to just never communicate with other humans aside from chit chat and personal opinions?
Never speaking to others about any info that we could glean from Google seems.. weird, doesn't it?
Who initially began the campaign of "just Google it" anyway? It sounds like an ad campaign for google
I keep thinking it’s FOD (foreign object damage) which is why you don’t want small, hard objects on a runway or something. Stuff like bullet casings can get sucked into a jet engine, and cause FOD that takes a plane out of service.
Then I notice that FOD doesn’t make any sense in context, reread the sentence, and realize it’s FUD. Whoops.
The best thing about abbreviations is that they are entirely contextual, which means that if it isn't obvious what's meant, you can make up your own meaning and wonder/ask why the other person is using it so very wrong.
There's even an abbreviation for it: TLB, which in this context means Three Letter Bullshit.
Was it quicker to make a post asking random people on the internet, and waiting for a factual response, than to type the same question into a search engine?
"fear uncertainty and doubt" is a phrase I may have encountered once per year. Makes zero sense I have to Google shit all the time for a single use per year. I'm not going to remember something so utterly pointless and useless
It may help if you think of it like any old-timey slang. You don't use it more than once a year, but when IBM/MS/ORACLE/CISCO were using those tactics against open source in the earlier days of the public internet - It was used a lot.
With lemmy being somewhat skewed towards the technically-minded, and older crowd, it is something we used as a general word often enough that to a lot of us it is just another word, and not an obscure abbreviation/initialism.