In a marketplace like LA, there are hundreds of potentially fantastic SB's.  Definitely its a SD's market.  I can only do it for a month, I get enough phone numbers and meets to last me six months.  I just signed up and it's almost overwhelming, and addictive.  My new game plan is to only look for the "real girls",  not escorts, but nice semi-slutty girls, who like sex, appreciate a middle aged guy who knows his away around a woman's body and want a little cash to help out.  But as to the flat out hookers, well , they are almost hard to pass up for a quickie.  I'll see how my new theme works.  
PS  I'm still pissed off about the SA iPhone app not working properly to show me the girl's details, but I don't think it is fair to penalize the girls for SA's stupid app issue.

Disclaimer: I have no specific or official info about this. I am not affiliated with SA or Apple. This is purely my personal speculation.  

SA is being forced to block viewing of two free-form text areas due to Apple's TOS for app developers.  Since SA can't guarantee that the SB (or the SD for that matter) won't type some message, info or potentially "illegal" offer, they won't let SA distribute their iOS app through the Apple App store with those sections viewable.  

Sucks.

I always found the site with less issues on phone, and ditched the app awhile ago.

SA site says:
https://www.seekingarrangement.com/help/