Trusting your life to some random aliexpress seller pushing 800g frames is a gamble i don't feel comfortable taking. Imagine it breaks from under you. While you heal from your wounds and remortgage your house to pay for the medical bills, you're like "maybe i should have bought a frame that was 100g heavier, maybe it wouldn't have snapped".
Then again, i'm over 80kg, so i'm not the target audience.
But it's still scary to me. You just dont know who you're buying from.