1Signatures are cheap for the real operators
Signing a mirror list costs them seconds, so a genuine announcement has little reason to be unsigned.
2Unsigned is the norm for fakes
Impersonators cannot produce a valid signature, so they rely on screenshots, pasted text and urgency.
3Quoted signatures
A post that only says "verified" or shows a screenshot of a signature has not given you anything to check.
4What to do
Ignore any wethenorth market mirror that is not inside a signature you can verify yourself.
Lesson summary
An unsigned WeTheNorth mirror post proves nothing; ignore it.
Looking for the current address? See the WeTheNorth link status.