After all these patches and changes I think it'd only be fair to start again with a clean slate. For example, someone's KD would've been a major factor before the Nerf of a Vex Mythoclast. This way everyone plays with the fair version of the gear.
Also, for the new people who joined the game this past month and are just leveling their characters. Its not fair for us to make fun of them because they're new. Again its only fair.
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We're a few weeks from the first DLC and this gear becoming the equivalent of blue trash. DLC 2 it will happen again. Expac expect even more profound upgrades. Welcome to the wonderful world of MMOs where that amazing hard won bit of gear becomes a piece of nostalgia in your vault every 3 months. ;)