I was diagnosed very early on, a specific psychologist I saw diagnosed it - though there were question marks put over it by dubious doctors who did not know better. I was diagnosed officially with the Cambridge test to diagnose autism and related conditions. Early diagnosis suggested aspergers, later I passed for autism.
A surprising number of technically minded individuals have low levels of autism, without realizing it . Higher levels are harder to disguise, and manifest in aggressive outbursts which might be part of the reason you keep getting band from forums, in addition to having none standard views.
By posting on forums you must recognize, you are entering into a dialogue, and people are going to disagree with you, especially if your views are none mainstream Sherlock. Most forums moderate offensive behaviour.
I suspect your maths is like my young friends music, coherent in short bursts, but when all the pieces are put together dont make a coherent piece of music, or theory.
Its fun to think thoughts, even if they are wrong, and like you say its not a competition