I go by many names. Take these, for example.

-Garry (Roblox, some non-Steam forums)
-GarrythaKultmasta (also Roblox)
-Tophat Tom (really old, Steam)
-Saikopath (alternate, Steam)
-I'm not Garry (alternate, some non-Steam forums)

And more! If you suspect someone to be me, just ask "Are you Saikopath?" If they say yes... they're lying. I only have one account on each service I use.