If you don't trust a company, you shouldn't install their software. They claim they don't do anything besides ensure you don't have illegal software running. If you trust them, you hit the "I agree" button and play on their site. If you don't, you uninstall the software, and they can't do anything on your computer.
I didn't read the licence agreement when I signed up - I doubt that many people do. Still, I would entirely agree that I should have read the agreement, so can have no complaints.
I do not know if the licence agreement (that I didn't read) specifically and categorically says that PS will scan my PC for software that they don't like - I suspect not. However, that's not really the point that I was (trying) to make. Neither is it the case that I do not trust Poker Stars. I found out about the scanning quite by accident, and found it to be somewhat surprising. I thought it might be of interest (and / or concern) to others, so posted to see what the concensus of opinion is.
I have nothing on this PC that I would not be happy for anyone to see, I am not a conspiracy theorist, and have no intention of uninstalling PS software. That said, l do have reservations about a company that decides what other (perfectly legal) software they do not permit you to use, and scans your PC for it's presence without out being very
up front about it.
For example, if when opening the PS software a pop-up appeared saying that "we are scanning your PC for software that we do not allow" I would have no problems at all with that approach, though I suspect that their legendary huge traffic would dry up overnight if they did that. It's the somewhat stealthy was thay do it that I'm slightly uncomfortable with. I may check their T's & C's at some stage to see exactly what it does say on this issue. If other companies from whom one downloads software took this approach, I suspect that there would be an outcry.