Darth_Poserus:
*#1: "Consistency across the site".
#2: "Ability to feature images in the newsletter "
#3: "Not such an "in your face" shock on opening the gallery"

Yet when I look at those a little more I find that:

1 Banning nudity in thumbnails doesn't provide any  additional "consistency across the site" whatsoever. 

Because, nudity is still allowed in the main images themselves, its still allowed in certain parts of the marketplace, and it's still allowed here in the forums too. To have any consistency with the rest of the site at all, there'd have to be a site wide ban on nudity as well.

2 Banning nudity in a thumbnail image, does not make it any easier too include an image from the gallery in the newsletter either. 

Because obviously if you don't want a nudity in a thumbnail in the newsletter, then it follows that you don't want some other plain thumb in there, that leads to the image with nudity in it either.
 
3 If folks who don't want to see nudity, were using the nudity filters they were already so graciously, and  freely provided by rosity to begin with, then there isn't any "in your face shock" whatsoever. 

As they won't see any nudity to begin with.
*1. Yes it is consistent. All areas of the site now disallow nudity. (Previously this was only the case within the marketplace.)

2. We don't want nude thumbnails in the email newsletters; it doesn't follow that we forbid nude pictures. We just don't want members (who may have the nudity filter ticked, only access Renderosity in private, and/or be using a shared email address) spitting coffee across their keyboards when they're checking their morning mail. (Any nude images include the small text warning "Nudity" - just as in the Galleries.)
3. What if I want to see nudity (which I do) but don't want to be assaulted with a wave of supersized mammaries every time I open the gallery page? Just as, if I like to buy Playboy, but don't expect to find nipples or genitals on the front cover... and if I buy a porn DVD, I might (in fact almost certainly will) find nudity on the box covers, but not a "money shot". 
   What if I want to refer a friend or relative here to view some of the very fine and tasteful nudes on here... but they're frightened away the first time they enter the gallery, thinking "Man, I didn't realise Kaz was into those sites..."

Just some food for thoughts ;-)

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire