I don't know why people keep answering the one when it wasn't a question. It was just a statement while the other two are questions. Yet they are scared of giving explicit answers for number 2 and 3.
I think I have explicitly answered the questions you asked. What are you confused about?
making them have different identities and hiding from the community that it is you behind those alt.
This is not a crime. In some cases, making the community know you are the person behind the account defeats the purpose of having the alt account.
It might not be a crime but it's unethical to have multiple alt accounts, have different identities for all of them, and use different Bitcoin addresses and other details to join signature campaigns, and since all your alts would have different identities, you can possibly join the same campaign with all of them and no one would even know about it. You may say that isn't a crime as well, but that is considered cheating, unethical, and not allowed. Apart from all these points, you can do a bunch of unethical stuff such as scamming people, taking loans and not repaying them, etc., and have no fingers pointed at you being the original account holder because all your alts are undeclared and unknown so no one can blame you for any of that.
So, these are all possibilities of having multiple accounts with different identities which you say is not a crime.
