FA cannot communicate with it's users. They typically use the worst ways to announce things (Forum announcements and frontpage news items). A whopping 300 people have read the forum announcement, and the Fender news items are likely ignored by most people as they are filled with stupid shit and advertisements for FA: United 95% of the time.
Yeah, it's not hard to do a small announcement. I mean, even if it were up for 2 days it would get the message out, but instead FA seems to want an influx of TT's submitted and people complaining about how they didn't know/how it's unfair, etc, and a lot of people are going to get in admin trouble because they didn't happen to stroll over to Fender's front-page shouts or the FA forums. Hell, I found out about the new rule through someone commenting on a submission saying something about "new avatar rules" so I went to the AUP and didn't see anything.. then the guy linked me to the "Knowledgebase" where it's shown :\ It's ridiculous.
The thing you need to remember most about the Administration of FA: It's creed is "Do not cause a stir/be confrontational if you can help it."
If you look at a lot of their actions with the mindset that the LAST thing they want to do is be confrontational/cause a stir (because that leads to the ever dreaded DRAMA) then a lot of it will make a lot more sense.
FA is a big site with many users, Dragoneer needs to learn that there
will always be confrontation and sometimes you just gotta do shit and deal with the backlash of "dat's not fayuurr

"
Looking through FA today several days after the ban it seems if they're mostly clothed it's OK. This of course means every single one of them will look even more identical, because all they'll do is recolor the bra.
Are you talking about icons like these?:
http://www.furaffinity.net/view/5741761/ 'cause no, those aren't allowed.