From what I understand the removal of your name from the top lists after 2000+ age was resolved with one of the previous updates; however it is possible that my info there is incorrect.
Also there are some theories as to the increase of finding rare items with higher age with the trade off of lower stat increases and vice versa for the younger characters. Personally I think this is merely an issue of the older characters having more quests and thus more chances as well as higher stats so lower gains but that is my personal opinion.
Grammar and puncuation added per standing request from Curu.