Words changed meaning all the time through history, it just happens faster.
Yes but before 2005 we didn't have Reddit, so we didn't have people who learned about prescriptivism from there and think it means all discussion about taste and style is immoral.
There is a world of difference between natural semantic drift and blatant disregard for accuracy by someone seeking to create drama for attention.
Not to mention all the attempts we see nowadays at deliberate redefinition of words, or the motte-and-bailey games played with jargon vs. lay understandings of a concept.
The two examples the grandparent post mentioned are not really evolution, but rather making everything sound bombastic and sensationalist. The end game for that trend is the cigarette brand ad billboard in Idiocracy, where a half-naked muscular man glares at you angrily and going "If you do not smoke our brand, f* you!"
Sounds more like de-volution to me.