Jack:
I seriously sympathise with you here , I feel bad for the stupid shit I did when I was younger and the pretty disgusting things I said towards people.
But... from what I gather you actually have nothing to feel guilty over , you are an amazing person who I seriously doubt would intentionally harm a site for autistics... but what's happened has happened and there is no animosity towards you.
As for being detrimental here , that's utter twaddle.
Your presence is welcomed and I think if you go I2 will be missing a very well liked member.
Really hope you stop painting yourself so negatively and see how well liked you are here , we may have had our arguments but I would seriously miss you if you left.