I remember the ATM fees threads going on and on and on and on and on and on seemingly forever, with the same arguments coming around again and again. The threads did eventually get merged and locked, but not before every opinion had been aired several times. In my opinion, locking them was a good move as they had ceased to be productive discussion long before. A quick search shows three main threads with 1,455 posts, 329 posts, and 72 posts. I hardly think this was a case of stifling discussion (one could argue it was allowed to go on too long).