Do you think there will be actually people who will leave this campaign since they can no longer hide behind "advertising another forum" or nah?
Visit the main cryptotalk thread on the services section and you'll see some participants already contemplating and waiting for the campaign manager's feedback regarding the recent change.
That is obviously a new campaign and would be considered a violation of yahoo's contract with cryptotalk (yobit). He may actually stop managing the campaign and most signature participants could also leave because of that.