I've had a couple of online interactions with him, and he was polite in all of them. In face, a few years back he sent me his one-hand firestarder (the shortened lighter) and the mini mag-bar to try out. I did so, and wrote a brief review here on ETS (as was the condition to try them).

I can't recall buying his stuff, but like others have said, he does have some good ideas. As well as some very strong opinions.

And, yes, he was banned from ETS.