[member="Larkoon Darkmat'r"]
Assuming you mean how someone grows in power, the site uses a three tier system (Apprentice/Knight/Master). Every player starts as a padawan, and their skills are limited. Beyond that, what you know is entirely dependent on how you train. If I have my apprentice train only on Force abilities, he shouldn't be well-versed in lightsaber use. And another thing: Tier does not determine if one can win. A padawan who has a high amount of skill in lightsaber combat shouldn't find himself instantly loosing against a Master who doesn't have the same skills in combat. Heck, there have been times where i could name apprentices who could beat the living crap out of my Knight-level character.
The leveling system is arbitrary, and should be taken with a grain of salt. If you've done the work, and have the abilities of a knight, don't assume you're weak because you haven't been promoted yet (or you may have other skills/equipment to give you an advantage, like beskar'gam). There have been padawans who have done more work than some masters. Just because you're a padawan doesn't automatically make you a punching bag/cannon fodder.
TL;DR: Work hard if you want to get to master, but ranks don't always mean what they may seem.