Indeed. You should see his usenet postings. Now, there is some startling stuff ;).
It's quite obvious you're referring to him....
Well, not only him. There are others almost reaching his "sane as a hatter" level. I'd say that people producing between 60-80% of the forum output is in that unfortunate cathegory.
As for "merit" of arguments - LF isn't exactly a "meritocracy" in that respect. More like bedlam, actually :).