I agree. Only use moleskin if you don't have a formed blister (just use it on hot spots where it has worked great for me). Once you have a formed blister, don't use it. It will adhere to the blister and be very painful to remove.
I put moleskin on the toes where i got blisters last time at WDW, BEFORE the blisters formed, and it was wonderful. I did use bandaids to keep the moleskin from "moving". Felt like my socks and sneakers wouldn't fit, but they did and it was very comfortable walking every day.