I prefer lower population servers for this reason,(quality over quantity) the RP community gets wattered down with all the OOC players on heavy load servers and then when the RPers get trolled on they just move into there groups/guilds/linkshels/FCs or wherever they are not mocked/bullied for openly RPing.
I just figure its more that players are still playing through the content and exploring the world, (thats kinda where im at right now.) as time goes on and everyone settles down i think RP will start to flow more in the open world. Hopefully.