I think words like psychopath and depression are thrown out way more casually, which diminishes their actual meaning.

"Oh my favourite character in Game Of Thrones died, I'm so depressed."
"My co-workers are all psychopaths, they're always trying to make me do their work."

See what I mean? This is not even a recent thing, people have been using serious words to bitch about their problems since forever and this makes the actual behavioral issues sound unimportant.