I believe players are getting used to faster green speeds. Most courses cut their grass shorter than they did 15-20 years ago, and the green speeds are faster as a result. The change has been gradual, so nobody noticed it happening. A stimpmeter reading of 10 feet means a medium speed green to me. 11 feet is nice and fast, and I see 12-13 feet a few times a year.
As a result, some vocal members at my home club complain about slow greens, because 10 feet looks slow to them now.
JV, at Pumpkin Ridge they told us the speeds before we played last year in the club championship. On the last two days, they were 10' 8" and 11' 4", or something like that. Very enjoyable, but not lightning fast.