I lurked on comp.lang.lisp quite a lot in 1999-2002, and I made a point of reading Erik Naggum's posts on technical topics. Those posts made me feel that I learned something. When I had time, I sometimes read his non-technical posts, too, and most were pretty entertaining, as long as not taken too seriously.
I think that was all, but to those who fervently believe that there is no language superior to Common Lisp, he gave voice to the ... let's call it intense disappointment, of seeing the overwhelming majority of the rest of the world flock to inferior languages. For everyone who had to suffer through yet another numskull saying "Gosh, it's just too many parentheses", he gave delight by excoriating the syntaxes of other languages.
And to those intelligent people who sincerely disagreed with him, he may have looked like just another elitist troll contributing to the intolerant atmosphere that they might believe held back Lisp, but such is the nature of bias, on both sides.