I don't think that will happen, guessing someone's seed phrase and even gaining access will be difficult, if that can happen, why are scammers stressing about getting people's attention before scamming them? However, according to the post, I believe it is simply about what you will do if that happens, for example, if I see someone's seed phrase written on a piece of paper or you guessed it and it is correct, what will you do if you gain access to the wallet? I will not touch it or even try to break into the wallet and see what is inside.

If you can guess a recovery seed in your head and import into a wallet then you landed on a billion dollars balance then the security of the wallet is whacked job because with such amount of money they should do more than just recovery seed.

Such crypto wallet should have passphrase implemented, I should have landed on a empty wallet balance instead of this much amount of money, I will teach the person a small lesson my moving the funds into a new address then sending it back later.

Maybe after a week? Or two? I know such person would have shit their pants already,  enough time to atleast make them reconsider their strategy, it's going to be hard to restrict such temptation though, many will take some part and send the rest back.

The chances of what the op is asking are very slim. At the same time, the chances of someone seeing bitcoin worth that amount after guessing the seed and returning it or leaving it untouched are also very slim; a lot of people will say things that will make them appear righteous online, but when such reality hits them, they will consider the money as a miracle sent from above.

Dormant or new private keys, you can not know that the owner lost the wallet or still own it with accessible private keys. If you don't know that but you still steal the coins, you are a criminal, surely.

If the owner lost the keys, for example in dormant wallet case, it is still morally wrong if you steal the coins in that wallet.

In legal aspect, if you steal something from anyone, it's illegal and you're a criminal.

You can not bruteforce my email password, access it and say you don't do anything wrong both morally and legally.

Basically, as long as you do not touch the Bitcoin and leave it as it is, you've pretty much returned it to the owner.

But I still wonder if anyone would actually be kind enough to do that.

Well it's technically not a simple task to guess someone's private keys and hopefully you find that kind of amount of funds inside. To me there are two options, which is you either transfer the funds to another wallet, which isn't something I would consider, or you log out of the wallet It is as simple as that best to say  in such scenarios anything can happen because the possibilities are endless. For me, if you are an honest person, you wouldn't take what isn't yours in the first place. Like put yourself in the person's shoes and ask yourself, how would they feel? So yeah it's wrong. Except you want to get involved in looking for the owner, but that shouldn't be your business in the first place even if you say it's a lost wallet, you still wouldn't be able to tell if it's someone's actual wallet or not.so the fact remains,taking funds is still legally considered theft. Even though the system is decentralized, real world property laws still apply. Even if there is no one to judge you, your actions are what matter, and you can choose to do the right thing or the wrong thing. That's all......

From the Bitcoin side, if someone somehow manages to guess the private key, the network doesn't really care how they got it. If the signature is valid, the coins can be moved.

But that doesn't automatically mean the person legally owns those coins. The legal side is a different matter and would depend on the circumstances and local laws.

ZHONG, 32, of Gainesville, Georgia, and Athens, Georgia, pled guilty to one count of wire fraud, which carries a maximum sentence of 20 years in prison.

That’s why I believe that such a discussion doesn’t have any practical significance, because no one will ever be able to guess the keys to a Bitcoin wallet. Especially not to one that contains a very large amount of money. And even if that were to happen - although, of course, that’s impossible - the person shouldn’t own those bitcoins, because someone else has already earned them before. And that means they’d be taking someone else’s property. You’re right in pointing out that legally, they also wouldn’t be able to prove to the law that they earned those coins through any honest means.