I dont know much about this subject, but let me put this out there...
I have been playing at UB mostly of late and I have come across somethig very troubling. In an effort to collect my bonus, have been playing alot at the .02/.04 limit tables. It seemed like this one ( or two, maybe three) players were 'regulars', and quiet ones at that. Then, because of the unusual hours I have been up and playing I have noticed that one player in particular is ALWAYS at the table. Then, after taking notice that this player was always there, never replies to any chats, and that one other player seems to always be two or three seat to one side or the other, I decided to go to another table of same limits.
Over the past few days, I realized the following:
1) The one player is ALWAYS at ALL 5 of the .02/.04 tables...no matter time of day... ALWAY ay ALL of them, wether there is another player or a full table...
2) this other player is also always there, or waiting on the side if there is no one else at the table
3) when this 'other player' leaves, another specific player 'shows up' almost immediatly.
These 'players' are ALWAYS there, any time of day, every day at all the .02/.04 limit tables. Furthermore, there is never any delay in their play as one might expect from someone thatis playing multiple tables.