"though I don't like signing in because I've had some bad PM experiences.
[SNIP]
PS - I think Trolls are figments of on-line folklore & some particular repulsive name-calling that goes on around here..."

So having been burned by Trolls thru PMs, this is the reason you now refuse to sign in as a member because you say you don't believe in them.

Most Illogical Captain!

:-)