Why I think online poker IS rigged.

[tame_deuces]

Since all gambling results should have variance - I can imagine that the first time when playing a gambling game, even as a losing proposition, it is pretty natural for at some time early on to have profit (because of the swings) but as time passes this gets less and less probable for a -EV player/game.

I'd guess that this plausible variance profit slowly dwindling into losses away as statistics chews along is probably 99% of the reason behind 'rigged' theories.