Due to recent activities (porn images, posted links redirecting to porn sites, pm spamming etc.) our forum does now have a few restrictions on pm's, links, bb code and images for new members. Since the porn posters seem to have moved on I just enabled custom avatars for newbies again. Images, links and bb code can also be posted by newbies but posts containing that content are automatically diverted to the moderation queue to be approved by a mod before displaying on the public forum.
I know this is inconvenient and can be really frustrating because it sometimes takes a couple of hours before a mod comes along and approves a queued post. Unfortunately it's still the best way that I know of to keep malicious users from registering a new account for the sole purpose of posting offensive content on the forum or using the private message system to send spam to our members.
Your suggestions, comments or criticism are always welcome.