There are some horrible players on this site. NWO is an example. How can I block him from playing at tables I start.

I can only assume that you are talking about players that use stalling tactics in Real Time games. 

My understanding is that if a player is a Premium Member, you can't block them.  If they are a Standard Member, you can block them from joining games you start IF you are a Premium Member, so barring that working..

My recommendation is that instead of playing Real-Time games, try to play games with a Fisher Clock. With a FC, not only can you customize the amount of time per turn, but you can make it such that the player who moves faster is 'credited' with more time ..up to a limit that you set.   When setting the clock, consider the way the board plays.  E.g., in late game stages, think about if it is reasonable to complete a move in 3 minutes, etc..

TY great suggestion.  

Stalling is not a tactic... stalling is grounds for banishment.

I am totally against naming players in the forums, but NWO is a player that needs to be monitored and considered for banishment.

I have to say that this is one of the threads that made me think about a reputation system.  It would be nice if you came across someone like this to have a heads up as to their bad behavior.

We need Tom to create a heads-up-ass symbol/medal ala the trophy that Bill Maher used to have on his show, which could overlay the player's avatar.

http://2.bp.blogspot.com/-FN_Uu4mCris/Tw796FfKsWI/AAAAAAAADcg/80o756uvfC4/s1600/HeadUpOwnAss.jpg

This was on my buddies fridge for most of my young life. :)

Ha, yes that's it, albeit a bronzed version.

Doesn't making a player an enemy block them from joining games you create? It does for me for a certain player.

If you're a premium member, enemies can't join games you create or have already joined. But it's not effective against premium members.