I think it's very much in the spirit of AIBU. Was it reasonable to delete one and not the other? Meh who gives. I'm pretty impressed admin have come on and explained why they deleted a thread, and then explained it some more though - you never got that on Bounty.
I also enjoyed it when MN kept going offline a week or so ago and there were suggestions that it was because admin were all in the pub, abd then admin changed the error message to say 'we're not in the pub'. But not as much as I would've enjoyed being able to access the site.
...In short, well done, and must try harder, and YA (probably) NBU!