HQ, I'm using Submitta for more than a year now. The infos such as name, email etc. are needed for engines who ask for that, such as excite which is asking for name and email, for instance. And almost all directories (such as yahoo) ask for some personal detail. Fill in stuff such as
[email protected] and fantasy names if you don't want to spread you real name. It's much asked from the engines anyway to get your real details just for submitting a page.