To further elaborate on what rob said about "giving admins a very hard time." What he means by that, as well as a personal response to it, is that not only have you been disrespectful to me on multiple occasions, you often disrespect players in the server. While it happens on every server, your skill provokes a lot of frustration with lesser skilled players in the game that leads to comments such as "cheater" or "spawnkiller" (I get those all the time so I have no problems with that) the problem that I have with you is you start to fight with guests and feed their anger. It's just a game, and we're trying to be a friendly server with helpful admins, but it's challenging when people come in and start fights over things that don't matter or concern them.
A word of advice: Unless you have something good to say, don't say it. Also, try to be less competitive, it's a 7 year old game... nobody cares anymore.