# What to do if multiple accounts are ostensibly the same person?

Case in point:

https://dsp.stackexchange.com/posts/62182/revisions

shows that Man and user46417 are one and the same user.

Personally, I'd recommend a deletion of the "unnamed" user with pointing out that multi-usering is discouraged, but I don't know policy on that.

EDIT: Ah, Meta.SE says that accounts can be merged, so this now becomes a merge request, unless Man engaged in "sockpuppeteering" (i.e. using user46417 to upvote himself).

EDIT2: The edit history of Difference between repeated poles and non repeated poles? might suggest that also abjt and Man are the same person, although it's not that conclusive; abjt might simply have been sitting next to Man and overly eagerly tried to specify Man's question and changed directions of the question in the process. I'll simply ask.

EDIT3: OK, this is starting to feel like a conspiracy theory, but engr's Image processing vs signal processing? is, especially in the final sentence, so much like image processing vs Computer vision? that it defies the feeling of a likely coincidence.

It's not clear to me that Man and user46417 are the same. The system logs IP addresses and registered email addresses and both are very different for each user. I can also see that the two are not acting as "sock puppet" accounts. Again, the system flags cross-support and neither shows any activity like that.