We don't allow achievement hunting because we're not a game you can just plug away at achievements with. Achievement hunting on a wiki is like if you went to a complete stranger's house promising to fix their sink and instead took a dump on their carpet while screaming "BUILD YOURSELF A NEW SINK!", walked away, and left it for them to clean up and awarding yourself a badge for fixing a sink.
Achievements are there so frequent editors to the site gain some noteriety for their contributions, and we get plenty who do a good job of it. You contribute to the site because you like the game and have something worthwhile to add. And you personally have done so far; some edits you've made today were actually decent so I've left them alone although I did have to revert a couple (looking at you, unnecessary categorisation). Achievements must never be your sole focus behind editing.