Thread:Project:Support desk/User account is not registered/reply (3)

As I was paging through the user table, it seems that many users are in the table twice ... once seemingly created by the Mediawiki registration and once created as a result of the ipbwiki bridging software. (Example: For user_id=15, user_name=Tw ; For user_id=1531, user_name=TW). This will be a problem. It seems that people made edits under both user_ids.

I have the UserMerge addon installed and it worked merging "TW" into "Tw" but going through one-by-one for about 500 usernames would be too time consuming. Could someone advise a better way to automate this?