(And Arc...it wasn't you, right?)
Toss this upon the pile of reasons why I deleted my account (along with paranoia that my account would be hijacked, and ensuring that the hundreds of mailing addresses in my private messages vanished).
I think my boards FTP access ended around the same time my FTP access to The Mayor ended (i.e. long ago).
I was (mostly) joking, but actually, come to think of it, you're probably the best guy to ask since most of those tweaks were yours:
Would Kazz, without FTP access, have been able to hose all that backend stuff -- formatting, the "who gave me karma" lists, the arcade, the shop, basically everything that isn't part of a stock SMF install? Because that doesn't make any sense to me. An admin could, if he wanted to, delete every single post and member on the forums, but I couldn't so much as add new post icons.
Anyway. Kazz, Niku, I'm exercising self-control and not sticking my head in over there to say all this, but if I were you that's what I'd focus on. If Arc confirms my suspicion that you COULDN'T have done it without FTP access, play the hell out of that card.
Also note that the member action/IP logs are fallible. Remember shortly after I stopped posting there, when I noticed the moderation log showed me deleting someone's account when I didn't, from an IP I've never used?
(Arc, that wasn't you either, right? It was before you deleted your account and right about the time you reset my password after somebody locked me out. But it wasn't your IP either.)
...Anyway. For a little dick-measuring, I just checked the two boards' stats, and Pyoko had only one more post in the month of February than WFE. Course, Arc and I are both WFE-exclusive and ridiculously prolific posters, but on the other hand, over there Kazz started a thread just to get everyone to post in it.
...My real point being that I'm not sure how long Pyoko can hold together if shit like this keeps happening over there. At this rate, it won't be just the admin team that's made up of a handful Terra's friends, it'll be the entire population of the boards.