Good for anyone that wants to show the whole of tumblr themselves naked, or semi naked, I guess it’s their choice. However, I will not be joining them. I find it rude and degrading that you send asks requesting people to do it. If I wanted to, I’d have submitted to you, or one of many other tumblrs devoted to this kind of thing.
Personally, I find that taking my clothes off is an intimate thing to do with a partner, and I wouldn’t even let them have pictures of it, let alone the whole internet, for anyone to save on their computers and keep.
Also, the idea of being anonymous is stupid, something in the background could immediately give away who I was to someone who knew me, and your tumblr isn’t lovely, it’s essentially a soft porn site.