There are a number of things that I previously suggested to change so that spamming would become much more difficult - unfortunately, it seems that getting these ideas implemented is more involved, because the number of people with access to the server seems fairly low.
given the recent spam attacks, I would thus like to suggest a new "convention" by requiring new wiki users to use a certain "prefix" or suffix (e.g. fg) in their user-names, so that wiki admins can much more easily tell if an account registration is valid or not - that way, we could delete accounts lacking this convention.
My suggestion would be to create a sticky topic on the forum and edit the registration page on the wiki accordingly, so that we require people to use such a prefix/suffix - whenever someone registers without said prefix, we can quickly delete such accounts and automatically block all accounts/delete all "contributions".
I do have quite a few other ideas, but this has no barrier to entry associated with it - and it can be implemented within a few days, without requiring much in terms of interaction from end-users.
Thoughts/better ideas ?