This article is two years old, and perhaps discord have improved their accessibility, since this user find it more accessible then matrix. Yes, it's a single usercase, but worth mentioning nonetheless.
I think there are other arguments against Discord that haven't been mentioned: data privacy. I know there was an instance where Discord collected user without their consent, and that is enough for me to avoid the platform.
I much rather use matrix or the horridly old IRC protocol than Discord. Or forums. Or just plain old issues!
Second, allowing access to message history is perfectly doable if the invite process involves the inviter providing the decryption keys to the invitee.
You're actually joking with the "inviter providing the decryption keys to the invitee" part right?
The whole point why people use discord is that it's simple, this is a feature that'd only annoy the average person, and every single extra step is a disaster for user retention (look at any eshop study).
Stuff like this is completely irelevant to discord, the tiny subset of people who actually care will and should use Matrix / other solutions, because that's the people they were made for.
Have you tried using Signal on desktop? It doesn't offer history syncing. Cross device for whatsapp for example is also a terrible experience. Unusable for something like Discord.
For a seamless experience Discord would probably have to store the keys themselves, defeating the whole point.
That's because both Signal and WhatsApp don't store the message history anywhere except on your primary device. (plus personal backups) That's why WhatsApp desktop stops working if your phone is off. Because it works by getting your message history, from your phone.
So to get the message history on Signal/WhatsApp in a chat you just joined, someone else already there would have to send you the entire chat history from their primary device. Which might not be on. Or have the battery to spare to stream years of messages to random people coming and going from the chat.
For "a seamless experience" Discord only needs store the message history on their servers, just as they already do, but do so encrypted.
For you to see that history, all that needs to change with how invites work, in that they would come with a decryption key transferred in the same secure way normal messages are. So your client can then access that server-stored chat history and decrypt it.
The difference here isn't that WhatsApp and Signal are encrypted, it's that they fundamentally handle messages differently from discord. Their servers only deliver them. So you can't get the chat history from their servers, because it isn't there.
You'd still have to handle transferring keys across your devices, every time you login on a new one.
Also, searching would probably not work, at least as well as it does right now, since all messages are indexed on the discord side, which they wouldn't be able to do without seeing them. Everything would have to happen on device, meaning the devide would have to store all messages.
"If you have nothing to hide" has never been a valid excuse to compromise on privacy.
Yeah, most of the time you don't actually need it, but if you don't make it the norm, one day you'll wake up and find that the entire concept of encrypted communication was made illegal.
As the UK is actively trying to do. And the first sparks of which have been seen in the EU as well.
And that's before even bringing up that even innocent normal conversation data can be used to profile individuals and mass-influence the democratic voting process with targeted campaigning.
Discord is a DM platform first, a public space second. And it's way better at being the first, than the second.
Providing support on discord is stupid, it's only semi-public and hides solutions to already solved problems beyond the reach of search engines and real public platforms.
I'm not trying to convince anyone to ditch discord.
You pushed the point that "it doesn't need to be secure because it's all public" which is complete bullshit. Not everything on discord is public.
That its secondary ability to function as a public space has over the years become the standard way to provide a point of communication in a manner that tries to fit the round peg into the square hole, is not an excuse for their privacy policy to be as crappy as it is.
You’re free to not use Discord for any reason you desire but don’t expect anyone to cater to you. Especially if you aren’t putting in work to support a project.
IRC has the same problem as discord when it comes to using it for support. It can't be searched. The same questions will get asked over and over again.
With forums and issue trackers, users can find a solution to previously solved issues with a simple web search.