And the other /other/ take-home message is that if you're going to revert someone, and they revert back, discuss it with them! I'm sick and tired of finding user accounts with many many contributions which were all reverted as "vandalism", and yet there is nothing on their talk page.
That's one of the reasons I gave up on editing Wikipedia and am slowly not bothering even to check my email on here: accounts blocked for "vandalism" or other reasons with no talkpage, new accounts with no welcome message, and general evidence of admins being shitty to them and getting away with it.