I think you should be where you feel the most comfortable.
That's how I feel about myself, too.
But it's hard when there isn't a place that suits you well, for whatever reason. I think when a board starts to feel painful, for any reason - it might be time to move someplace else - but it's hard when that someplace else doesn't exist.
I don't think you're being sarcastic... maybe you are. If so, I am not the queen of any board and it's not in my nature to tell anyone where they can and can't post.
Be where you feel supported.