Why has the term "safe space" changed so drastically? There's even revisionism to make the old definition forgotten, like on Wikipedia. The old definition was "A place where one could share ideas without ridicule/being silenced" but now it's "A place where harmful ideas and words can be avoided" and they're basically exact opposites. What gives?

(Also sorry if this feels /pol/-esque, I'm not trying to infringe on r/banter's radcen nature, I promise)