I come from eastern Europe. I consider everyone a dishonest and dangerous person, until proven otherwise. If it wasn't for this mindset, I probably wouldn't be alive to write this post.
It's ok if you're proud of being naive. But bear in mind that Bitcoin (and the Internet in general) more resembles eastern Europe than the USA (or whatever liberal, over-protective country you come from).
This is the way to go on an individual basis. However, it's best not to be "contaminated" to the point you think scamming is okay or taking gullible people for a ride is justifiable or even
deserved. That's when you get a perma-3rd world society.
I advocate the Japanese school of law enforcement. Expect the worst, do your best and be heavy handed with the rotten apples. It just f****** works.
This community is a scammer/sociopath magnet, and culture must be shaped accordingly to ameliorate this very obvious reality. It won't happen spontaneously, we must react strongly to scams and frauds.