On the image uploading page you exemplify "wearing so little that they might as well be naked" with "1 pixel wide thongs", but I wonder how skin-tight closing is judged by moderators? Just like 1 pixel wide thongs, skin-tight clothing can make so the character may as well be naked. On the other hand, I've seen plenty of such skin-tight clothing in the regular (non-supporter) image library. Still, wanted to ask before I post anything of that nature. Better safe than sorry.
Attaching an example. Always easier to discuss with examples at hand. In it, the character is clearly clothed but still has her breast very clearly defined through the fabric.
(EDIT: Removed attached picture. Guessing this part of the forum isn't protected by any filter.)