There is a reason they are made into stickies. They answer questions people ask ALL the time. The ones who make the threads to be helpful and encourage rp and set some kind of standardized set of guidelines are not being paid for their efforts. They do it to help improve the rp community.
As for which realm to go to, it is a good question, also answered a million times almost verbatim the same way. Instead of someone asking this same question, even a look down the list on the first page has answers to it. People do not even look. They just start a new thread asking the same question and I don't know...maybe expecting a miracle and be pointed towards the best rp realm there is.
Guess what, there is no magical realm where everyone rps nicely and does it without ganking or calling people who do not know how "noobs"...it does not exist. Right now, the most popular realms are crying like babies because their realms are SO popular they have a que time. So if you are looking for a realm that has good rp and has lots of rpers, you will have to wait in que...or you can try out a less popular, quieter realm.