Please Remember: Ultimately you are becoming part of a community and that is defined by the sum of its parts. So help build and foster a better community for everyone. That doesn't mean server community. It means in the community you build with friends.
Edit: Be open minded, welcoming, and remember to give folks a chance. Remember, there is a person behind every character and that sometimes people have bad days. Ultimately , make sure you enjoy yourself and allow others to do so as well. The game is big enough for everyone.
Edit 2: However, there are some guilds and folks on Moon Guard you may want to avoid to make your time on the server enjoyable. Please feel free to mail me ingame or message me if you see me on to find out whom. You can also find players on tumblr for reference. This is especially important as there are some folks who are known to condone the use of slurs and are harass others. Harassment takes the form of slurs against lgbt, mentally handicapped and those of different racial background. Please do not hesitate to contact me so you may stay clear of something that may ruin your time on Moon Guard.
Edit 3: Ignore the elitists and folks who tell you that you are doing it wrong. Ultimately, it comes down to enjoying yourself and finding like minded folks.
Thanks to Eredis for suggesting this.
So, you are thinking of transferring or rolling a new character here, are you? Good for you. Moon Guard is a great community, and because of the size of the player base you can literally find whatever kind of RP you're interested in. Unfortunately, if you're just coming here for the first time, you have no idea what's happening. No doubt, you have a few questions you'd like to ask about the server. Hopefully, this thread will help answer some of those questions for you.
1. How is the RP on this server?
In a word: thriving. Both Horde and Alliance have players that are RP heavyweights. Even the raiders RP here, and some of them even RP in instances or raids.
2. Where will I find RP?
This generally depends on which faction you are. Horde tends to be random RP everywhere in Azeroth or Outland. You could be in the middle of Hellfire Peninsula, and the chance is good that you'll be able to RP with a fellow Horde who just happens to be in the area. Alliance, on the other hand, tends to centralise the RP in cities, especially Stormwind.
Some good starting points suggested by Avaryce are:
Alliance: The Cathedral, Gilneas, (sometimes) Feathermoon Stronghold, Darkshire/Raven Hill. Horde: Fenris Isle, Brill, Sunshine Row, (heh heh) and the Drag. It's not an extensive list and there are downsides to all of them but if someone wanted to fling themselves on the mercy of the tides, it's a good place(s) to start.
The Alliance tends to have more RP events than the Horde does. There is rarely a month that goes by that a major event isn't being run by an Alliance guild, and these events draw characters from all other guilds to participate. Alliance is more structured with the RP, which makes finding it a little easier and helping to make you feel as if you're a part of a real society. Horde, on the other hand, is chaotic RP that can really help to make your character come alive and make your playing time memorable as you interact with a variety of strange and/or wonderful people.
3. Which is better, then?
That's up to you.
4. How do I find out for myself?
This one is easy to answer. To find out, roll a character on each side. Level it up a wee bit first. I recommend to at least level 10. Interact with others, both in the world and in the cities. You'll know which side you prefer in no time.
5. Okay, what if I wanted to join a guild? How will I find one, and how will I know if it's the right one for me?
To answer the first part, just keep checking these forums. Most of the guilds advertise here whenever they're looking for new members. As to how will you know if it's a good fit for you, there are really only two ways to figure that out. One is to read their advertisement. They will spell out what they're looking for, what their rules are, and (if they have one) a link to their web site. Really, though, the only sure fire way to find out if a guild is a good fit for you is to talk to some of their members, especially their officers. Talking to the people who are a part of the guild will give you far more insight into the guild's personalities and concepts. From there, you can make a more informed decision.