I have been playing the Bovada
ones recently, and Bovada, IIRC limits multi tables to 4. Which I tend to think diminishes the multi-table effect we see when villains are playing 10 tables, or more. I don't multi-table much anymore. Age and eyes you know. For the others, with no HUD at Bovada, it makes even less sense, because we know they are not pouring over our stats making a decision.
But since I have done it, they can too, and have multiple sites up so the 4 table limit is meaningless.
I used to mention this on table, and it used to tilt me some that it happens. But since I really only want someone to suggest a decent reason why they do it, I have stopped getting tilted and now find these games to be very profitable if I can keep at least one eye open.
But it still has me baffled why this happens.