The issue is that the forums are focus on Dip gaming, and upon the various supplementary tools for the gaming experience, specifically advertising for new players, replacements, sitters, etc. The site is not designed to host multiple off topic chats, and those conversations are generally unwelcomed here by most users, chiefly because they clog up the forums.
It should be rocket science to understand that neither VDip nor WebDip are set up to host message board type forums. Accordingly the nitwittery becomes an undue burden upon those attempting to play Dip here, and it is rather disrespectful to persistently ignore that as well as repeated *polite* requests from the moderators to stop.
Now maybe it's possible to modify the forums in a way to achieve the wave of new chat topics without disrupting the desired gaming environment. Maybe that would be a compromise, but I suspect that it would require a great deal of time and some funds to accomplish this. There are Dip sites that offer extensive chat forums(Redsacpe offers regular discussions on history, religion, politics, beer, investments, and sports along side Diplomacy games, but it works well there because the site is a message board based interface. They ditched the automated Web Dip platform there two years ago, and moved back to forum/email gaming exclusively.