Greets and welcome, H! Glad to see you've joined us. Personally, I much prefer natural (or natural-looking) breasts, but that's just one dirty old man's opinion.
Definitely go as big as you like- no one should have the right to decide how you should look except you.
I dig your need for anonymity- not everyone has the optio n to 'out' themself. Of course, if you ever do see fit to post a pic of yourself that includes a non-blurred face shot, I'd welcome it. Any rate, feel at home here.