Option 1:
There is a massive international criminal conspiracy dedicated to cheating players who play at
PokerStars.
No evidence exists for this conspiracy, nor is there any credible explanation of how it happens, nor is there any credible reason to even suggest such a conspiracy.
Option 2:
Some people don't understand luck, probability or poker.
Option 2 is infinitely more likely. If people want to claim that Option 1 is true, they should provide some evidence of it. Otherwise, they just look like bloody idiots.