so, i've basically had the idea that you'd be able to upgrade your skills by using them a lot, however they would only upgrade until you hit 100%, for example, if you fire a small gun lets say 30-40 times you'd get a 1% bonus to your skillset, that may prevent barter alts to some extent, since everyone will be able to hit 100% of barter if they sell enough items, and give the lvl 21 players something to work for, getting all their skills to 100...