A lot of it has to do with religious fundamentalism too, though. There are religious groups whose members believe they are participating in sin if they read words describing that sin.

Alas, this is not an easy problem to just hand wave away as youth slang. There will always be an older person policing youth speech. That is the nature of religion, governments and social policy as a whole - to ensure the youthful generations don't upset the bucket in which the old sit.

For as long as the Internet has been online there have been curmudgeons willfully applying their personal doctrine to strangers.