Tagging won't help. Nuking accounts won't help either since most of them are newbies easy to create one. What mods should do is nuke their service off bitcointalk.
I can create a large number of forum accounts and shill Crypto-Games.net with them. Should Crypto-Games then be nuked off of bitcointalk?
Do you have a better solution?
Another account was born today who started shilling for the casino with their first post. At this point, I think they're using bots to create accounts and post garbage data.
BogHorse Nuking the account is the best possible solution because all their posts will be removed from forum if their account was nuked which completely destroy the purpose of shilling.