This is just a shower thought I had since we're seeing lolicons spazzing out currently. Call this hypocrisy at its finest, 'cause even though 4chan is swarming with lolicons, the community will not tolerate Yotsuba getting lewded at all. She's practically the only child character they never want ruined, and anyone who dares to ask for rule 34 of her will get banned, possibly even phonebooked. It's asking a lot since digging scum up is already hard on the psyche, but it may be worth keeping an eye out for any of these freaks to see if they have her in their sights or not, whether to nudge some anons who're lurking to join the crusade, or to take educated guesses that they may be 4chan regulars (who may or may not have posted in that "Reeee Kiwis have an anti-lolicon thread reeee" thread) and know Yotsuba is off-limits.
Like I said, just a thought. Doubt it means much since they all deserve the rope anyway, it's just something I'm aware of when it comes to imageboard culture.