Of course, he's blocked me for sending a personal message that's why I cannot contact with him from private message. I don't want to open a new account in here to have a new red trust because of multiple account. How can I solve this issue without reaching him?
you can't do anything without him about removing his feedback. But JollyGood has been mentioned here several times, so I believe that he will surely know about this thread, if he doesn't get in touch here, it's probably because he won't, and not because he hasn't seen it.
I want to remove these unfair red trusts from my profile and join few signature campaigns to earn some pocket money while I'm producing new topics and comments.
You've barely posted in the past years, since you got tagged. I don't think "wanting to earn money" is a very convincing reason to remove negative tags.
To me, this sounds quite arrogant. He must be paid for his contribution to this forum.