Probably because if Find My iPhone is enabled on the phone then resetting it would require the iCloud password (and even after that there's Activation Lock that would come into play).I'm always surprised when I see these stories, because what idiot wouldn't "erase all content and settings" on a new (to them) iPhone before using it?
The only way this can happen is if the phone has NO passcode and they start just using the phone casually without caring that it's signed into someone else's iCloud account and has someone else's contacts, texts, photos, etc. on it.
Because the person is clueless about iCloud, and probably a lot of other things on his phone. Per the article:The stranger thing is why the person who lost it didn't lock it or change the lock code and perhaps even completely erase it given that it seems they have Find My iPhone access to it via iCloud online.
The fact that the person signed into it and used find my iPhone to find wher it is certainly seems to be a ways from clueless.Because the person is clueless about iCloud, and probably a lot of other things on his phone. Per the article:
"I signed into my iCloud who knows how the iCloud works anyway? No one knows."
Someone likely told him to do that (or signed in for him) when he started seeing strange pictures on his phone and complained to people about it. Or he may have educated himself on what iCloud can do after the odd pictures from China began showing up on his phone. But his own words make pretty clear what the knowledge level is up to now.The fact that the person signed into it and used find my iPhone to find wher it is certainly seems to be a ways from clueless.