i dont know if this has been talked about in the past, but i think there should be a way to delete old screen names. there are a several members that have old ones that arent used, and there are people who signed up who havent been on for a long time.
ok, deleting them may be extreme, but there are other ideas, like the two above had. you are right though, nothing HAS to be done, but there may be some merit to figuring something out.
who cares its not that big of a deal also if you think about it if matt tells a sponsor he has 21,000 members (even if all of them are not active, he just doesn't tell them that) they are more likly to sponsor the site because of the large member list
^^^Probably why they are not deleted and also why there will never be a 'last logged in' because if the sponsors come on the site, they will see that some people never come on any more.