To determine whether your article contains any plagiarism, visit https://1text.com.
Thank you. I'm open to any more comments that might prevent too many accounts from being banned from the forum.
You don't need to visit any site to confirm if your article is free from plagiarism or not. It's only when you copy text from different sources and try to make it look as if all the entire content belongs to you that you need tools like those you mentioned to check if your contents are convincing enough not to be detected as plagiarized content. If one writes something from his brain, even if the person might have read it from the internet weeks, months, or years ago, there is very little possibility of the writer's content looking exactly like that of the learning source, unless the person crams the entire word. If not, whatever you are writing from your head will definitely be different from others, even if there are about three of you who read the same book. Your point of view and understanding will be different from others'.
Among all your aforementioned reasons why people get banned, plagiarism is one of the things I noticed moderators don't take seriously; they either give a temporary ban or a permanent ban; it all depends on the level of your offense.
Another one you fail to add is having different alt accounts participate in the same campaign with the purpose of rug pulling, bounty cheating, ban evasion, etc. all of this are things which add to banning of accounts.