I've done it a few times.
No one has outright tried to scam my money.
However, most of them will ship without a phyto certificate. So they'll just gamble whether or not the package gets sezied/inspected.
Usually they will reship it for you if it does, you do have to repay the shipping price though.
If you're lucky, sometimes another person buying it will have a phyto cert, and your order goes to them, and then they ship it to you, kinda as a favor from the seller.
Currently buying some buces from a guy in vietnam and it can be quite a hassle if the package gets inspected and refused.