As a DVC member as well, I have been told by MS several times (although I've never even asked

) that pool hopping is allowed as long as you are staying on a DVC resort and are DVC members with a few black out dates with the exception of SALB, AKV Jambo and Kidani pools and now BLT pool.
We have never pool hopped since it's not really worth the trouble of going to a different resort to swim in the pool. I like the fact that once you're done at the pool you can quickly (and I say quickly since the AC is soooo cold) go back to the room. I guess I don't see other pools that much more appealing than the one at the resort we stay in.
I do find that the CMs are a lot more strict with the pool now that before. I guess there's been a lot of problems. A few years ago, we used to be able to stay at BCV and go to SALB without requiring a bracelet, in the past year or so, we had always had to get one. There is always someone standing at each entrance. I remembered this past August, we were getting our bracelets and a family tried to go past the CM and the CM immediately turned and asked for them to provide their "keys". They kept complaining that they just wanted to jump in for a few minutes and then go to the boardwalk. When I left, they were still arguing, I didn't notice them at the pool. So I don't know what happened. When we stayed at the AKV Kidani, the pool had the key card entrance which I thought was a great idea.
Actually, I'm glad they are cracking down on it. I overheard a CM stating that they have been having problems with the locals not staying in the resort, but just driving over and going to the pool. And this probably one of the main reasons why we hear of security at entrance being a little more deligent with visitors. I remember a few years ago, being able to easily go to the Boardwalk area to look around, but a year ago when we drove in, we were asked so many questions - where we are going, what are we doing etc...it was strange. They were very nice about it, but a few years ago, we were told where to park and "Have a magical day!". Sad really.