The OP's post here makes my head spin, it's so hard to understand.
Yeah, it's not against the rules to have alt accounts. Even some DT members do, and it's no secret and there isn't any forum drama or anything about that fact. The problem is when members use alt accounts to enroll in the same bounties or campaigns, or if alt accounts are all posting in the same thread, because that becomes a spam issue--and I've seen that recently in a thread.
The fights are tiring and annoying.
Then don't read them. You'll just become tired and annoyed.
Forum rules clearly say "You can use different accounts". Even this is encouraged.
In this case, it is ethical to participate in signature campaigns on different accounts.
In this case, participating in signature campaigns on different accounts is not "abuse".
The forum rules don't say anything about campaigns. You made that leap yourself.
It's not "ethical" to enroll multiple accounts in one campaign or bounty. It's selfish, because you're taking up spots that could go to some other member, plus it's probably against the rules of the campaign anyway. It is abuse, and you're not going to change anybody's mind with your argument.