Excuse me for asking, but why would you need to know your members'
1. Street address, city, state, zip, country - whatcha gonna do, send them free catalogs?
2. Telephone number, ICQ number - for what, tech support?!
3. Gender - who cares if the guy's a male or female?
4. Marital status - does it matter if they're married or divorced or single?
5. Highest level of education completed - okay, so what can do you do if you knew the guy only completed elementary school?
6. Household income - I really want to know why you're interested in how much money the guy's family gets annualy.
7. Occupation - so you're going to refuse to host if the guy's a police or a surgeon?
8. DOB - heh, the guy will be expecting presents.
9. Age - ?
So my question is: what are you planning to do with all those information? Besides, you probably already know that 99% of the people won't be truthful, so if you're doing a survey or whatever they say they do with the info (they call it graphical information???), you're not getting the real results.
And yes, I know those aren't required fields, but since they aren't, then why bother asking?