Not really. One of them was posted to gamedeals@lemmy.world and I managed to check it out for a while. They literally copied the official Helldivers 2 page, down to the publisher and developer names. Every little detail, even the "news" updates. It would have been very hard to tell that it was a scam, unless you took the time to read the reviews or the community forum.

I was on the community forum on there and there were a lot of people warning everyone and asking people to report them. One guy in particular managed to link to 5 other store pages that were posing as popular games, that all happened to release at the same time last year and change their store pages at the same time.

It didnt.

Think is, it's either under 2h of play or 2 weeks on your account. So, if you buy the game cause "it's super cheap, an amazing oportunitt" and don't plan to play until say, next month... then you are effed. I guess in this case, since it is fraudulent/criminal, steam would do something, but that's how they planned on exploiting the return policy.