I would like to suggest to delete two badges, as they are just too time consuming for someone to unlock. Even being round on site (active) since it first went live does not suffice. No one has unlocked these to date. I don't mind a challenge, though don't see the point of these 2:
Forum Guru V × 0
Post 500 threads in the forums.
Open for Discussion IV × 0
Make 5,000 posts in the forums.
I am actually against forum post badges/leaderboards in the first place, because of this mindset. No one should be trying to make posts just to get to the top of a leaderboard or get a badge, however, since the previous levels are there, I don't see any reason to remove them.