Whisperer, what major problem is not adressed in your opinion?
1. MBC is no issue regarding the leaderboard. It nets some dozens points per game and this amount is not significant. Additionally there are some other "dirty" tactics out there that generate achievement points of this quantity. There are bigger issues at planets.nu to spend the limited programming power for.
2. The give/capture loophole is very significant for the leaderboard. It nets 1000+ achievements points per game. But this problem is already solved. See http://planets.uservoice.com/forums/136520-general/suggestions/6087732-bug-loophole-in-crystal-and-pirate-leaderboard. Gurgeh's promotion is no proof that this fix doesn't work because he could have gained nearly all achievemet points before the fix and since then collected the last points in a regular way. I agree it would be a good example for the programmers to verify the fix.