Those  are some  funny ones, I like  bugfucker and  Nutbuster.   I also  like to  look  at the implied  messages  or  give  some new implied meanings....
muffyman (is that like a super hero?) oralexcavator ( a dentist  or  some  other  special talent?),  Hotoffload ( taking the  donuts  off at Krispy Kreme?) occularblues (  a depressed  optometrist?)
Some  are  enigmas like  exodusblack??