I have an account named: psnh0xvip, I use it to do bounty / airdrop. I don't comment on any one post except this one https://bitcointalk.org/index.php?topic=5140199.msg50977961#msg50977961
Is it called plagiarism ? I thought to myself and wrote it,  my account have permanent banned but i need a good reason

You have to be aware that Bitcoin is still relatively new technology and still not so much people are familiar with it and people are usually sceptic to new things and don't trust them.
Also, many still think that Bitcoin is some kind of scam scheme and are afraid of volatility and aren't willing to accept the risk. I beleive this will change with time but we also need more education and awarness campaigns about Bitcoin and cryptocurrencies in general.