I think that master-P's account never changed ownership.

His password was changed four times:
2016-01-05 11:37:58
2015-12-17 13:55:10
2015-05-25 15:26:43
2014-10-19 04:07:48
No resets. All of the above changes were done by IPs which geolocate to the same general area. Also, his very first post and his very last post geolocate to the same general area. And for the last several months he's been using mainly the same IP.