Have you ever been successful? I am curious about those who are extremely dedicated to this field. It seems like it is hard to actually be successful in this field unless you have some partial information that can help you. There is also the question of whether this is unethical because you are gaining access to coins that are not yours. It might be considered hacking, is it not?
There was definitely success, but with a small amount of funds, say up to $80, the terms are different, it happened that you could find something in a day, and it happened in a week. About ethics, morality and law - the one who has the private key is rightfully considered the owner of the funds. Looking for owners is like a needle in a haystack and there are many scammers among those who allegedly own these funds. As for the legality specifically - the funds were obtained through social engineering, the withdrawal should be made through official exchanges and a declaration of income received through social engineering should be made - the income is declared, the tax is paid, there are no problems. But it depends a lot on your location, for example, I live in a country with more lenient laws when it comes to paying taxes and withdrawing crypto. So in fact it is a cool niche but the ways of approaching it are the most valuable, it’s just that I don’t ask for it for free in return I can provide a lot of things from free balance check of millions of wallets, transaction histories to my methods with real confirmations.
Today, by the way, not one API gives unlimited possibilities, and I, in turn, am ready to check at least 500 million addresses for balance according to the list of those, for example, who will share the a method of searching and mining that will bring in more than the amounts that I found. In general, I do not engage in targeted hacking, I do not ask anyone for anything for free, I just live by what I can, bro, so for some it is jokes and nonsense, and for others life is on such means and methods.