Very simple, and a real security check it is. You know, sometimes, misinformation can be a problem, or when people misinterpret an information. The OP sounded like, once you own Bitcoin, you are very much safe from anything called theft or scam, which is totally wrong. I understand that he is painting the picture that with Bitcoin, there is no interference from a third party or any other body, and that you are in charge, yea, but like you reminded him, the owner still has a lot of work to be done. Not your keys, not you coins, simply demonstrates that, he who has the seed phrase is the only one with the access to the coins, thus, you must always be active and protecting your coins, else, scammers may take them away.
Yes, this is why it is very important to write accurately as much as possible. Sometimes people have good ideas and are thinking the right thing, but then they write it in the wrong way and it delivers a completely different meaning. Users must be reminded to spend more time reading what they wrote before it is submitted. I said it already, he may have tried to write something about the double spending problem which is what Bitcoin has solved and it has eliminated this kind of scam even if there are many other types.
Bitcoin is the digital currency that just works, I mean not just working like others who are also categorised as digital currency, Bitcoin has the lowest volatility compare to others, I can say that Bitcoin is them boss, all of them alternatives, noting comes close, and also Bitcoin is the first decentralised innovation that works too, both online and offline, there is no where else you can find something that's true decentralised without the centralised authority getting rid of it, Bitcoin is the first that works in that aspect.
This is a very wrong way to put it. Almost all other digital currencies also just work, there is nothing helpful or interesting in a description of something as it just works. You are making something very complicated into a very simple description, which can reduce the value of the difficulties and efforts that are put into the project to make it work. Bitcoin is not just something that works all the time on its own, there are great people who are constantly looking for issues and trying to improve it, discovering attacks and trying to prevent them.
The absolute biggest deal is the fixed 21 million supply cap. You can't just print more out of thin air when the economy gets rough, which is exactly what central banks do with fiat.
That mathematical scarcity combined with self-custody is what makes it irreplaceable. It's a great feeling knowing nobody can just freeze your wallet or dilute your stash.
We need to be very careful to preserve it. Every now and then someone comes with some kind of idea of adding more supply for this or that claimed good reason. It is never a good reason, and should be only considered in a question of life or death for Bitcoin. Even in that case I am not very comfortable with considering it.