Why would you waste a sf and gf geared toon just because you're disgruntled
Frankly, no one cares if you are upset that you're getting farmed and dinging your rogue will do nothing to rectify the situation - you'll only regret your hasty decision in the end
I recommend if you're upset - roll another class that's faceroll easy like a hunter, arcane mage, hpally , or priest or just wait it out. If you really want to be proactive then form a guild group q and don't let yourself get farmed
Yes the bracket is suffering because of the constant gy farming, however leveling your toon because you're upset does absolutely nothing to help the bracket and actually hurts it. So don't put up this facade that you care about the health of the bracket when you're just abandoning it because of rash, hasty, immature thoughts.