I feel like the thread has already covered anything I could think of to say, but there are a couple interesting categories represented.
First you have young/generational slang, 'moar, yolo, swag, lit, fam, bussin, no cap, chad, soyjak,' etc. that would seemingly demonstrate an adoption of popular language without any greater thought, depth, or precision behind it. "Why do you talk that way?" "I don't know, someone said it and it sounded funny."
Very similar to the above you have the infamous '>reddit
lingo,' which is very similar to the above, but with the differences that it is more (internet) location based than generational, 'doggo, le, pupper, friendo, updoot, kind stranger, etc.' which, could be said to have a strange quality of 'babyspeak' to it, which seems to be enforced through the 'enticements' of its karma system? I'm not a >reddit
guy, so I can't say too much on this, but really this could be a terribly interesting topic if explored.
You also have speech related to political groups, principally leftism, 'inclusivity, diversity, community, community guidelines, racism, sexism, transphobia,' etc. which are frequently used as either subtle warnings or outright (verbal) weapons for the enforcement of a very particular point of view, which I assume is one of the reasons people are so against these, even when they might in theory agree with the supposed principles underlying some of them.
There are verbal tics, 'literally, like, genuinely, um,' etc. that are related to awkward speaking patterns and social influence, but do not seem to be much more than sentence fillers to keep noise in the conversation rather than thoughtful, though perhaps awkward, silence.
There are various highly conceited-sounding phrases used to directly put someone down while puffing up one's own chest, 'Think again sweety,' 'Do you really,' 'I feel sorry for you,' etc. Honestly these feel more like things that women are inclined to say than men, probably everyone's just tired of posturing jackasses who think they're cooler/smarter/hotter/better than everyone else.
Anyways thought it was interesting how some of these phrases could be categorized.
These groups can be summed up as...
'Young people talk like retards'
'Babyspeak is annoying as hell.'
'Everyone is tired of being called hateful by leftists.'
'Verbal tics are annoying if pronounced enought.'
'Don't act like a bitch.'