I haven't deleted mine. I would have to be really pissed off I think.. lol.
I think I have only removed 1 or 2 so far. Generally I am pretty happy with mine, although my intent was to have way more Night photos in it (a lot of bugs have invaded, but I post what i can get). But getting out and taking them, often alone is something I need to kick my own butt to do more.

And on deleting images, I really hesitate to do it if it has a good amount of comments and any favs. Then I feel I am cheating others that like it. With my 3D account here (striving), I have done that a lot though, for some reason my digital art seemed more personal, I guess it the term.

Cool thread.. interesting read.