Wrong and wrong. There aren't rules for such activities in the forum (just like scams aren't moderated). However, the community members will understand that the account is controlled by a new owner (by the posting style, activity change in different boards, etc.), and he will be tagged (neutral tag).
Having multiple accounts is also allowed unless you dont have any previously banned account related to your IP address.
Eg. LoyceV has 2 accounts (one he uses on his phone and other main one from pc) and its completely ok.
Great to hear that you have found a rule on the forum that buying/selling an account is a violation of the forum. As further as I know there is no restriction by the forum rule to buy/sell accounts. But as it can increase spam/scam anyone can negatively to the user who will buy/sell any forum account.
Yes, you guys are right. I checked the forum rules again and found that account sales are allowed, but it is not recommended to sell accounts. Thank you for correcting what I said. I hope that the OP will find a reliable person who will help him get an account so that he can work on signature campaigns. Newbie most of the signature campaigns, or maybe most of them, do not allow this rank to participate with them, so many people want to buy forum accounts.
This is the link to the rules of the forum for those who want to review them:
https://bitcointalk.org/index.php?topic=703657.0