Here's an idea. What if when a post gets reported several times (the exact number needed would vary from board to board, and perhaps even change depending on the time of day) the thumbnail gets replaced with some sort of alternate thumbnail signifying that the post is NSFW or whatever (maybe even use the promotions guy). Clicking on it causes the real image to display (like with the spoilers thumbnail). This way offensive images can be hidden until the mods get around to dealing with them.
Of course, this feature probably wouldn't apply to /b/ (and perhaps even just apply to the worksafe boards).
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Anonymous2008-02-16 19:42
Agreed. Maybe a Spoiler thumbnail with 'NSFW' in the place of 'SPOILERS'.
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Anonymous2008-02-17 10:45
Nah, I say we need this on some of the non-worksafe boards. Quite a lot of loli and furry shit is posted on /d/ for example.