We might be thinking of different players. I didn't know about pokeroptimizer, but I checked on there and he has played 12k of games according to that.

I emailed support again because I'm not happy with the standard, "He's not running any prohibited software" BS I got the last time. If you are a reasonable programmer it's possible to write software to aid decisions, which is mostly illegal. How do they check for that?

IMO, the the most likely reason for hiding your stats is that you don't want others to see your volume or good results. It it was all above board, you would probably be proud of the volume or good results, not wanting to hide it.