I see some providers requiring/requesting photo ID, age, ethnicity, etc... as part of screening process. Isn't privacy part of the hobby? Is everyone/anyone providing this information in order to book?

Search Newbie and General for terms like:  
PII [personal identification info]
Drivers License
Screening  
Linkedin
and terms like that. Read the entire threads.  
.
Here is a start:  
http://www.theeroticreview.com/discussion-boards/newbie---faq-33/drivers-license-photo-171673

Thank you

Find the provider that fits your needs. I require real life information to book because every potential new friend needs to be vetted. The only way to bypass my screening is if a mutual friend contacts me personally & can vouch for you. Is see you have old whitelists here. I always whitelist gents after 1 visit.