I understand that you can invalidate old accounts as deleting them creates a number of issues. However as the number grows there become a practical limit to having a gross of invalid accounts (Doesn't it?)

What problems could be expected should I edit and existing account for a new user?  As I understand the design the existing account details will remain as the account details are stored in the article/job/ticket tables?  Will this allow the new user to "see" old unassociated tickets?

Appreciate your thoughts and comments.

L.Q. Marshall