Not really, the Campaign has a running 60 day ban. The two cases presented above are really a prior version of the Yobit Campaigns signature, from some point in the past. Notice that both @Dudeperfect and @alyssa85 have a Yobit signature that refers to "over 350 coins". The current (banned) signature references "over 1450 coins".
There are a handful more profiles Ive seen still bearing that old version of the signature.
For real i saw @Dudeperfect with something like a "Yobit.net signature is banned" on his sig space earlier on unless i was hallucinating

Maybe what's happening is the yobit chaps have found a way of encouraging users to wear old yobit signatures that have yobit.io link which was not banned whilst displaying Yobit.net on the signature for people to see
I can't agree that it's only because of the old signature code, the two users stated above have you directed to yobit.net or yobit.io.
Maybe we need someone who are not currently in a campaign to wear the old signature and then get his feed back.
The old sig can be found in this
thread, right?
i already told my friend who is not wearing signature at the moment and he wears the old signature but it still "Yobit.net signature is banned"
for the @dudeperfect can wear it because it contains yobit.io but for @alyssa85 cases it contains yobit.net but it still not banned