What do you mean by illusions? If matter, mind, and motion are our subjective perspective of stuff that reduces completely to a timeless mathematical object (I suspect it probably does), I don't think it follows from that that we can say it isn't real.
Like I said above, fire is not made of hot stuff, water is not made of wet stuff, etc. The 'atoms' that make up our subjective reality would not themselves be in motion or be conscious. But yes, consciousness is odd sort of 'illusion' in that it creates a subjective reality. Would it make sense to think of levels of reality, with some being 'more real' than others? Or maybe we can think of certain levels being 'dependent' on lower / more fundamental levels? Consciousness would then be located at a very high level, far from the 'foundation'. (Which is part of why I am an atheist.)
What do you believe that most people on this site don't?
I'm especially looking for things that you wouldn't even mention if someone wasn't explicitly asking for them. Stuff you're not even comfortable writing under your own name. Making a one-shot account here is very easy, go ahead and do that if you don't want to tarnish your image.
I think a big problem with a "community" dedicated to being less wrong is that it will make people more concerned about APPEARING less wrong. The biggest part of my intellectual journey so far has been the acquisition of new and startling knowledge, and that knowledge doesn't seem likely to turn up here in the conditions that currently exist.
So please, tell me the crazy things you're otherwise afraid to say. I want to know them, because they might be true.