I'm not sure what to say OP, I was going to suggest that you maybe didn't have a large sample size on which to base your assumption but SS seems to show you with nearly 1400 tournaments and you've been here for over 10 years.
Maybe your ROI is much worse on here because the average Sky player is much better than on the other sites? Maybe you don't adjust your game to 6 player tables? Maybe you drink more when playing on Sky? Maybe you're not very good? Maybe Sky is rigged?
I would suggest that any of the first four are more likely than the last one.
Answers
The title of it already told me you were an idiot
Maybe your ROI is much worse on here because the average Sky player is much better than on the other sites? Maybe you don't adjust your game to 6 player tables? Maybe you drink more when playing on Sky? Maybe you're not very good? Maybe Sky is rigged?
I would suggest that any of the first four are more likely than the last one.
Good luck and I hope you run well.
https://imgur.com/IEEgW9l