Dunno if you have ever palyed wow but twinking used to be a national sport in many servers.
In any case though, there will come a day where noone will care about 50- pvp. The point of the game is to have a fun leveling experience with missioning, flashpoints etc., but the vast majority of the playerbase is interested in the endgame. When they will want to level up alts, they wont get into pvp since 50lvl pvp is their interest and they wont waste time for pointless lowbie pvp. Correct if im wrong