Lots of players are sick of room spammers ( including me ) especially from the fast ones ( who spam and leave in 1 second) and they come back again with same or different Yahoo! ID’s so you can’t have time to catch them to click on ignore.
Unfortunately there are some stupid people and bots whom spam our game rooms, they use 3 ways to do this.
1- People who spam and stay in the room.
Its very easy to ignore this people or bot, find their name on the player list at right side, double click on their name.This will open an information window just click in the box near ignore and hit close. After that you will never see what they type at lobby, table, room PM (private message) window.
2-Peoples who spam and leaves in one second and some of them has so many id’s and use different id’s for each different spam .
I’m explaining how to catch/ignore them, keep reading 
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3- Bots yes bots you didn’t hear wrong, these are programs not humans they written for spam our game rooms, they spam but never answer you.This bots can also behave like 1st and 2nd matter.
Let’s kill this fast spammers, for this you have to use Yahoo! Messenger.
1- Open/login to your yahoo messenger
2- Click on Messenger tab top of the left and click on Preferences
Step 2
3-Click on Ignore list from categories window ( left side ) now you will see your ignore list
Step 3
4- Simply click on ADD icon, this will open a small window which you can type the Yahoo! id of the spammer
5- After you done typing id of spammer click on ignore then window will be closed and you will back to preferences window you must hit APPLY first and after OK.
Step 5
When you back to room if you still see the spammer just leave and reload the room. You must know sometimes it won’t do any action when you hit ignore ( it won’t accept) just note that id somewhere and try at your next login 
As everything there is a limit for ignore box too when it get full you can simply delete couple spammers which you ignored long time ago for ignore new ones.
happy pooling