The only main names I have used were "Oliver Hagamy" and "XR_7".
Back in 2012, I used a lot of troll names though, meant to instigate attention. A few examples:
Eric HartmanNo1 knows Josh Wilson
God's Not Dead
Sidewalk Prophets
LegoSalt (directed at LegoPepper)
BungaUnga (directed at UngaBunga)