Well it's sort of is a members only club in the sense that you have to have an account to post on it.
I guess that was too elitist for him which is why he had to give a separate account for each of the voices in his head.
When I hear the voices they have to use my account.
Sockpuppetry seems to work on having at least two contrary personas one creating one scenario to attempt to sway the crowd one way and the other in complete opposition to sway the crowd in the opposite direction, supplementary socks may manifest to back up either of the two polar opposites to some degree usually never as strongly as one of the extreme socks.
The difficulty is that that's how a partisan conversation works anyway without the need of socks.
JediTray comes across as a bit of an oddity as he/she/it as far as we know seems to be reanimating the same persona under different names.
ABC does this sort of thing but doesn't bother to hide it much if at all.