there are way to many boards.as to your question,no i think its good that they post in many places.as some here will tell you some of mods on other sites get a little power hungry.
Use all boards, even ones not in your area.
You never know when a guy might travel your way.
Exposure is good.
I look at boards when I travel, I stay away from providers o CL or BP or city papers.
Known ladies are always best.
I"m relatively new on this boards, but am more familiar with Eraps. Am looking to have more dialogue with my friends from ERAPS and some of the great providers here on ECCIE.