I'm wondering so many guys didn't know about this issue of revealing. As Jim said, it was discussed at IYT. I'm neutral regarding it, but we have to admit, it has its logic, more than that, it could be very difficult to modify the algorithm, b/c, if we think well, there would be a need to implement an illogical or ambiguouse rule, otherwise should be treted as an exception, that also gives headache to programmers.
This is what bothers me: When I hit the link for previouse move, first there's a need to hit it 3 times to show the position as it was before the actual one. More than that, when I come back to the last position - using the link for the next move - I can't make a move, there's no "hand". So I have to hit somewhere on a move in the list of moves, than click the last move on the list.