Those plugs have no shame...but seriously this is a place to voice yourself and announce things. It's similar to the hangout but it's moreso for if you're going on vacation and won't be near a computer for a week or you're starting an RP outside of the guild to try it before you go to the guild to start one and you want to advertise it to the guild or similar things.
I'll go first to show you how. Subforums cost 2,500 gold and the site could really use some so it'd be really nice if you could donate. I will do my part and this isn't required but it's simply nice.