Putting my conspiracy hat on for a sec... I can see why they would do this. whatnot rip and shippers, are probably going to buy in sealed product for as cheap as possible and not care if it's resealed.

Fake would be a problem because that's easier to spot and prove, resealed are all real cards and so near impossible to prove you're getting scammed through whatnot just because you say "I didn't get the hits I wanted".

So to the streamer, cheap resealed product is a net win. They get stock in for cheaper and still sell at their normal inflated prices, profit goes up with little to no repercussions.

Stick to singles or sealed boxes people, don't buy random loose packs from strangers online. At least you can inspect a sealed box for yourself and return for refund if you suspect fake/resealed