[quote=@DMZ]
TL;DR: RPG, please explain to me how not to be a dick to my players.
[/quote]

Lol, Ok so I did read it, but to reference every point and critique each part in detail like what [@Jig] has done is something that would take me a long time.

When it comes to an RP you have to remember that it is [i]your[/i] RP. Stick to what you want and tell them straight, "This is how I want it to be". Your role as the GM (Game Master) means that you are in control of the RP so what you say and what you tell your players is pretty much Law.

If you have a player that is causing problems then you may have to put your foot down and tell what is going to happen.
[indent]1: Give them a choice in either fixing up their attitude, post, character... or leave.
2: If they refuse then mention that you may have to take this further and ask for a moderator to step in... and they'll pretty much say the same thing but will have that power of saying, "We are now watching you."
3: Most importantly, apologise afterwards for any inconveniences to the other players. They want to know that it is resolved and that they can play on without interruptions. Any further distractions will mean that they will eventually disperse and 'go dark'.[/indent]
What you need to remember though is that the longer any disputes go on, the more of a hit your RP will take. So as soon as you have a problem, ADDRESS IT! It's also a good reason why a Co-GM is a good thing because you can have a quick meeting to check to see if you, yourself, are overreacting to something that you saw.

Also, be reasonable... Don't threaten to boot someone if it's a minor error and also understand that most people that enter 'want' to enter your RP if they liked the idea enough to create a character.