Maybe. This type of obvious slop is extremely pervasive though, to the point there almost can't be that much undetectable AI writing.

Checked LinkedIn and found four posts in a row that had "here's the kicker".

Yeah, I've also see a lot of "Not X, not Y, just Z" style posts on LinkedIn.

LinkedIn has always been a place full of low-effort posts for people trying to self-promote, so I guess it makes sense to have a robot actually do the thinking for something that is and always has been inherently mindless.