[wp-hackers] Loosening username restrictions in plugin?

[Craig]

URLs in username slugs? Vanity issue? Okay, I'm the first to admit that I
know nothing about coding, but to me this smacks of allowing a bot to create
thousands of users on a multi-blog setup that not only get links via bogus
posts, but from the username as well.

Or I could be 100% wrong, in which case, ignore this rambling dissertation
and find another thread that interests you.

Craig.
Nuclear Moose.