Riot grrrlee addressed a similar topic not too long ago, with regards to disabilities as an insult.
[{quoted}](name=Riot grrrlee,realm=NA,application-id=ZGEFLEUQ,discussion-id=8mAGfzRG,comment-id=000000000001,timestamp=2016-08-18T16:42:57.934+0000)
As a former teacher who actually worked with mentally-handicapped kids, I'm also particularly sensitive to when people use the 'R' word. And I think it's great that you know so well that it's not something to be thrown around. As others have pointed out though, and it's incredibly unfortunate, it remains true that there are people out there who do not understand and are not as compassionate towards others. I'm sorry that you came across this situation yourself and were so affected. Doling out permabans however isn't always the most effective way to try and help an individual.
However, on another note, it doesn't sit well with me that you compared the usage of that word to a woman being raped. I think you could be more thoughtful about tossing out an analogy like that so carelessly :T