system
A chat on subreddit /r/NoStupidQuestions
human
He likely isn't but comes out that way. I have made friends with a lot of non neurotypicals and I have noticed people can't really tell they are not trying to be rude.
gpt
Not to mention that sometimes people take condescension as a contextual thing and not an intent or personal characteristic. So it won't matter how nice you're actually being sometimes, just dumping info on them is sometimes seen as aggressive in some way rather than excitement. 

Add in the difficulties with socializing and it can feel impossible to talk to anyone about the things that excite you.