but I think a sockpuppet generally has a more subtext, or more of a subtext, the person must be using the account concurrently to assume a new identity, two post with two different identities at once.
on other fora, when I have been banned, a bit like the poster arbiter, who then went thru mebbe a dozen iterations of which banproccyling may have been his most famous, well, he might be an exception, he was pretty obvious he was not the genuine sockpuppet, cos his accounts were neutralised and no longer valid, he was not merely on a ban, and using it to circumnavigate the ban... as I was about to say, I have done other accounts on other fora when I got banned, but I was posting with the same personality, in the same subject threads, it was obvious i was the currently banned blackcat <thirdperson>.
I have never used a "sockpuppet" with this definition.
Offhand, I cannot remember posting under two different handles here when I was banned as blackcat, BUT, I may well have, the short time memory is a problem at the moment, I have had prolly half a dozen bans here, so it would not surprise me if ~5 or 6 years ago, I did form another account, which the mods promptly shut down. There mebbe some details behind the member wall for the moderators who can clarify any ambiguity. It does not matter either way, I will plead guilty to knew accounts when I feel I have been incorrectly banned, and to be truthful, there is not a time when I feel I have been correctly banned your honour, so, there is a material chance, an even chance that I did another account to circumvent the prevention on posting.
But a second account to create a new identity to post concurrently with another handle, in the same threads? nope. I have not done that definition of a sockpuppet.
I think his debut was as arbiter...
but you could usually work out the new members' handles, because he then had a schema for his handle, usually went "three terms, two nouns, one verb, about 5 syllables in all"... and except for his original arbiter, you could put the new member handles thru an algorithm and it was pretty easy to work out arbiter's new handle, without even seeing the ISP, even if he never used a proxy.
"It's a bit like the whole chimp thing," Sir Bradley Wigans