also I have seen attempts to login to few of my accounts that I haven't initiated lately, still it wasn't successful and i was able to change passwords and add 2FA to them
No problem. Everyone makes mistakes, and I'm really glad you figured it out quickly and fixed the situation. The good thing is that the hacker only managed to steal your legendary account on BTT and couldn't scam the members through his scam topic using your account about one of the meme coins. His wallet addreess on Solana Explorer shows that he has 0 SOL. The Mods responded really quickly, and I appreciate their cooperation and efforts for this community.
Anyway, I hope you used a different device, not the infected one, to change the passwords of the accounts that the hacker failed to steal. And I hope that once the ban on your account is lifted, you enable 2FA and review your forum messages in case the hacker noticed any important information. Also, when you open the infected laptop, don't forget to disable the internet, and ASAP create a new system with a format of the C drive, and install a strong security program.