you can check my steemit and hive accounts and my friends, we are considered spam because we make buying and selling transactions on one person's wallet, at that time we didn't know how to buy and sell transactions on steeem.
Is it wrong if we make buying and selling transactions with one person ..?
You imagine if you and I have mangoes, then we sell the mangoes to one person.
Is it wrong if I sell my hive to someone..? My friend did the same thing at that time...
I have no idea what you mean. All these accounts were blacklisted for different abuses such as plagiarism (text, photography, videos), farming with copypasta spam, identity deception/theft, etc.