Added a new spam filter

[kato13]

Just letting everyone know I added a new spam filter to the site.

If any post triggers the spam filter it will be put in moderation until a moderator or myself can look at it.

I have no idea how sensitive it is so perhaps if you post a joke about Viagra or something similar you may see message indicating that your message will be held in moderation. If that happens send me a PM or note it here.

I am applying it to all users right now to see if anything gets flagged but eventually it will only apply to users who have fewer than 6 posts.

Long term I am probably going to restrict signatures for new users as well until they have made 5 posts as signatures can be a source of cross links, which are useful for raising Google rankings.