I'm afraid you are mistaken. The renames that occurred for the Server Mergers were exclusively with contested names. There was no purge or freeing of names in advance. Contested names had one renamed with the _Tag. The single Name Reclaim event is the only example of names ever actually being freed into the wild. Server Mergers did not free up occupied names; they only resolved conflict of two people having the same name by awarding it to one and tagging the other. With server mergers, if nobody else had your name on the merging server, it did not matter if you had been inactive for 5 years. You still kept it. They were only "freed" inasmuch as they were contested by the other server and already taken there as well. Nothing actually got freed for new players.