This is just a small-scale operation; there is indeed a way to get killed in this. Everyone knows this is profitable, and you can still do it, not because you are unique, but because everyone else is afraid to enter, and you are not.

Or you have more advanced risk control measures.

Using VPNs for cryptocurrency trading has turned into cross-border foreign exchange business; three 'post-95' young men have been sentenced for illegal operations!

https://chainalert.me/view/headline/a8ad05

Actually, this is still acceptable; after all, the law is clear, and everyone knows there are legal risks involved.

What I have always found disgusting is that Multichain, as a cross-chain bridge, was inexplicably shut down. The funds on it are money from investors all over the world, and the cross-chain bridge itself only serves as a connection; even if it involves dirty money, it enters from address A on chain A and still exits using address A on chain B. It remains address A; the cross-chain bridge did not commit any wrongdoing.