Avoiding phpBB registration spam
Online marketing report boosts a phpBB registration bot - a tool that will register a user on a phpBB forum, in order to drop a link in the user profile.
Since phpBB doesn’t put a nofollow tag on a profile link (check for yourself on the mother of all phpBB forums), phpBB forum memberlists are an easy target for linkspamming.
I used to manually remove fake registrations on a phpBB forum I run until I got sick of it and installed this anti-registration-spam mod. It simply removes the url field upon registration, and discards the registration if an automated process tries to post a url field anyway.
[tags]phpbb, spam, anti-spam, registration, nofollow, memberlist, forum, mod, phpbb mod[/tags]