no way the site gets rid of your bankroll based off of suspected and basically unprovable collusion, worst that happens is you'd have to go to another site.
I doubt this really happens much though. Every once in a while i will see two people in a room from leftquackingvilledaleUbeñ and think twice about it, but i doubt i've ever been colluded against to any great detriment. Don't guess any of us would ever really know though would we.