There are ways Players can Collaborate when playing on-line, Talking to each other while they play on the same table, over the phone or using Discord. This just gives me another reason why I don't play for huge buy-ins because it would be so easy for players to collaborate this way, On-line Poker is great if you play just for fun, no one in the right frame of mind is going to cheat this way for a Micro/Small stakes Poker game, It just wouldn't be financially viable.
If you feel that On-line Poker is Crooked or Rigged in any way, the answer is Simple, DON'T PLAY!
No one is forcing you to play, they are not stood next to you holding a gun to your head. You don't have to make a deposit, You don't have to buy-in to games you really shouldn't be playing. Use your common sense and if you feel cheated, DO SOMETHING ELSE!