Many people left because of this. When these new "GTN 50s" come into a hard raid with a guild, they sit there and ask TACTS WHAT ARE TACTICS. /facepalm. Not only did they buy their equipment but they also couldnt be bothered to use Google to look up the tactics.
If they were bound in this game, it would be fine for merchants because they have other things to trade, it would also be good for the hardcoe raiders because they'd stand out, if you see someone with the best stuff in the game you'll know they're experienced. Sadly, none of this happens in SWTOR, you cant stand out or be unique.