Right... so you want me to treat people differently, based on their status as being different. I dislike that, honestly, since the autistic people I know in real life do not want to be seen as different from regular people. I treat them like anyone else. Sometimes I have to repeat myself or speak a bit slower but that's not the same thing as walking on eggshells because they are autistic. Should I begin treating black people differently than white people, since black people on the internet feel the need to impress on me the fact they are black and somehow, that should mean something to me?
Having been diagnosed with autism myself, I have to say this summarizes how I feel. I would like to be treated like a regular person. And why should I have to tell people that I'm autistic for that to happen? Everyone is different and we change our behavior to fit with those people -- if someone is hard of hearing it's something you should pick up on through constant interaction with them, instead of getting mad that they ask "what did you say?" a lot until they tell you they have poor hearing. Or maybe you interpreted it as them not paying attention? Well in that case, still don't get mad because that is another quirk that could be unique to them. All you need to know is that this person asks "what did you say?" a lot and you may need to repeat yourself more often. Don't like it? Don't interact with them.