What harm to the forum carries the copied phrase in the topic with the bounty a year and a half ago? What harm to the forum are messages with reports
if they are needed by the rules of bounty campaigns?
The harm is meaningless spam.
I think stark_star means the Twitter and FB reports, which are basically sequestered to the bounty section of the forum--and I don't have any problem whatsoever with whatever gets posted there. The issue is when the bounty hunters participate in the signature campaign part of a bounty, which means they have to write posts in English. That's a language that isn't native to most bounty hunters, and the result is shitposting/spam in sections outside of the altcoin bounty section.
As far as the "copied phrase" goes, OP said it himself. There's no statute of limitations on plagiarism, so if you get caught with an old post you have to take the same consequences as you would had you done the copy/pasting yesterday.
Another fallen brother, I guess there was a wave of bans in bounty threads, my account was also banned without saying the reason and nobody can even find out for what was I banned.
In your case, people are probably getting tired of spending their time looking for examples of plagiarism or spamming or whatever. We've seen it so many times in Meta where the same "why I get ban?" question gets asked, and then someone wastes their time showing an example, and the response from the banned person is begging/excuses/bargaining/etc.
You're also not supposed to be posting here.