I can't do much but asking them not to do so. It's not against the rules to say but it's not against the rules to ask to stop either.
Asking to stop can sometimes work but you're still going to run across a lot of people who will continue to use autism in a degrading manner and even trolls that will attempt to troll you with it, trolls and people who will likely not stop when asked too. Especially if you're an admin. Some people love to mess with admins especially.
In my opinion you're much better off learning to not let it upset you than you are trying to get people stop using it in ways that upset you. I learned to deal with people trying to troll me over the furry thing a long time ago, something which people could use to easily make me mad.
Since I've learned to deal with it years ago I only get trolled every once in a long while, and when I do I always learn from my mistake. I even play on Valve maps LA, home to Augar and his troll friends. Not even they got a bite out of me yet and they're tossing a lot of shit my way every time I play there. I even find some of it to be humorous (the ways they try to troll me that is)
Best way you can deal with this type of stuff in my opinion is to 'grow a thicker skin' and make good use of your ignore, and most importantly don't take the insulting / hating / trolling seriously because its the internet - people will use anything and everything against you because they can be a anonymous asshole.