Your story just doesn't make sense. How could you "accidentally" put your brother's ETH address in a bounty application?

It would be slightly more plausible if "your brother" didn't already have a bunch of alt accounts.







And there's probably several more but you get the point.

Finally, there's a lot of rapid transactions between you and "your brother" on other blockchains, including Polygon:



https://polygonscan.com/address/0xf86e7742766909a9ca716e7ae8de3d83a00a230c


All these txs took place in the span of 17 minutes. Highly unlikely you were coordinating this with somebody else.

So its been over a year since you were banned. Even though you're not supposed to, you could have just made another account and ranked it up somewhat significantly since then. My suspicion is you didn't do this because you already have at least one other account currently active on this forum.