lacantina

What I find interesting is that Twitter and Facebook have the same graph shape, both peaking in 2013.

They should allow a log scale, then you could compare with Facebook more easily.

Of the 0.2% of the population that is homeless, few are fat. Their level of poverty is closer to the poverty in developing countries.

The "not strictly" only adds to the insult. You have group A, people who would be judged clinically insane (or borderline, which is more of an emotional issue). Let's call them true crazy. True crazy is bad. You have group B, much larger, people with inappropriate behavior that probably isn't going to lead to a psychiatric diagnosis, perhaps rather they just have a lack of self-control or good judgement. Let's call them false crazy. False crazy is a slur because of what it says, that your behavior is bad, bad like true crazy. And so the thing is, every time you use it, what you're also saying is that true crazy is worse than this.

The "acceptable use" that you're claiming is basically the same as calling someone or something gay, or someone a fggt (sorry, HN probably bans comments for using that word), even though the person and/or behavior in question has nothing to do with homosexuality. I hope this clarifies things a bit.

Another problem is that it can make people so angry that it's difficult to articulate coherent replies, so thank you.

Seriously mentally ill, needs medical attention.

I would describe all people described as crazy as mentally ill, unless we're talking about "gay doesn't mean homosexual, it just means dumb", which is also bad.