All The Tropes Wiki Project, Part XI

[robkelk]

Not directly, but a Miraheze Steward can do a "Check user" to see whether the IP addresses match.

I think a "Check user" is requested via phabricator.

EDIT:

... Curiously, he hasn't reappeared since then, and someone who seems to have a similar style and focus has suddenly started contributing anonymously. ...

I went and looked. if by "similar style" you mean "exactly the same style, including idiosyncratic use of parentheses", I'd have to agree.