One thing to note is that advantage or disadvantage on a passive check (that is, a check you wouldn't roll for) are conveyed through a +5 or -5 respectively. For example, if your passive perception score is normally 13, with disadvantage from dim lighting it would be an 8. A hidden enemy would only need to roll an 8 or above on their stealth roll to avoid notice.
I personally find it much worse to drive alongside inconsiderate people
That's a good point. I'm quite certain the account was MichelleG.
An moderator admin account MichelleG posted a few strange things that have since been removed. One was titled "We've whitelisted Threads.net" and all the post said was "go cry." They may have been hacked or their account was compromised.
This looks like the dating app, Bumble, where those are the default colors