I can understand that such an account created back in 2011 has some kind of sentimental value, but it would have even more if it generated some kind of value in terms of posts that don't actually exist. Will such an old account mean something special even if it manages to rank?
It will look on face value as an old member who left Bitcoin for years an only returned to it after stumbling on an old wallet they could not recover or a different reason brought them back. In the end the user will care little of it ranks as they already have an account here which is a Sr. Member, it is just a prove of their long term involvement in Bitcoin.
but I don't think it's of much importance because it's obvious from the nicknames. Although if he or any DT leaves feedback, it's not bad either.
The display name is a dead giveaway and the user might not want an 'official' confirmation or links between both accounts. I am not only speaking about this case but in general, if the account owner does not link both accounts, others should not do that for them through a tag.
- Jay -