In Vegas, when I was staying at casino hotels, I always played sufficient hours there to ensure a return invitation, but my serious play was elsewhere.
In AC and Delaware, I have always played mostly where I am staying. I may be pushing my luck, but I think two things are in my favor: (1) I am not a black chipper; and (2) I take great pains to sustain longevity. Still, eventually I suppose I will be noticed if only because it is difficult to disguise winnings, especially when they come at the end of your last shoe.
I can see someone at the casino running a list of winning accounts. First of all, it must be a very small list. Secondly, if someone is consistently winning amounts exceeding $1,000 a trip, ears go up. That's a big drawback to playing rated, which I only do in AC and Delaware anymore.