You know those shows where the one skilled swordsman kills enemy after enemy, taking on three at a time and skillfully dancing between them, eventually coming out on top? You can be that person in this game. If, that is, you're willing to practice enough.
Due to the up-close-and-personal nature, dying will make you rage. You will blame anything but yourself - Lag, hacks, exploits, feints, whatever. It's okay, just xx2 (laugh command), take a break and come back tomorrow. Keep a cool head and observe why that person is killing you. Eventually you'll be able to take them down.
Parts of the community can be bad. Lots of veteran players are on a power trip and will treat you like dirt if you're a noob. On the other hand, once you get good you'll get kicked out of servers because the new players get mad at being killed over and over. The combat in chivalry seems to bring out the worst in us.
That said, there's plenty of cool people out there. If you stay cool and be nice, many people will realize how much of an ♥♥♥♥♥♥♥ they're being and apologize. The rest you can just ignore, git gud and take revenge on. I've met some good friends on chivalry who I talk to regularly.