What would happen if i Registered on SIGNATURE CAMPAIGN as Jr. Member, but Campaign is still running and my rank has going down to Newbie ?
Will The Bounty Manager reject me?
If he/she sees that your account has been downgraded, that will be the end result (most likely) since you won't be able to wear the signature completely (if it uses more than a 50 characters).
But to answer your question, Newbies and Jr. Members have the same signature limitations as far as I know,
The limitations aren't the same ("Newbies" can only use 50 characters,while "Jr. members" can use up to 150 characters on their signature spaces).