I’m not and neither is anyone else. A gnostic atheist is just as deluded as a gnostic theist, you can’t really have knowledge of something unfalsifiable so I’m just as sure that god doesn’t exist as I am that dragons don’t exist.

For practical purposes I am quite sure, and it depends on what god too. For the Christian god specifically I think it’s hilariously obvious he could not exist. The more personality you give a deity the easier it is to demonstrate that they do t exist. If god is so jealous and so interested in people’s specific beliefs then I would imagine he would interfere to some degree. It’s interesting that Christians usually say he can’t or won’t because of free will but then they say he personally intervenes in a car wreck, so which is it?

Gods generally though will always have some kind of problem. I like the concept of the trickster deity who wants it to look like he doesn’t exist but that’s the whole twist.