Wow is a gear based game, Huxley is not. "Twinking" in Huxley won't be a problem with balance like it is in Wow. There will very probably be higher level characters handing out good weapons to the lower ones considering the fact that they may just be fighting next to them and a better weapon could save their own ass.
People are probably going to be making new characters all the time to try out different play styles so they'll always be a market for lower levels to get some gear from higher levels. Even the E3 video on Huxley talked about higher levels giving lower a better gun.
Oh, and quotes from wiki:
"
Twinking is a
term used in
computer role-playing games to describe a low level playing style. A player who engages in twinking is known as a
twink."
"
Twink (gay slang), a young or young-looking male homosexual"