My purpose in asking this question is only to clean up the mess created by users.
For the last 2-3 days I have been answering questions on SO, and found that the questions asked by most users are new. But from their questions and other things it looks that they are not new to the community.
There must be a lot of duplicate accounts created by users to ask only one question. I want to know how to know if a user has duplicate accounts. Generally, it looks that users change their email hosting account website but don't change their user name. For instance firstname.lastname@example.org, email@example.com, firstname.lastname@example.org.
DisplayName - NumOccurrence =========================== Chris - 1019 John - 1007 Mike - 1003 Alex - 893 david - 867 Matt - 662 Mark - 642 Tom - 637
If accounts are found to belong to the same user, does the community/moderator have the rights to merge accounts?