Unlike Ebay, which holds their sellers accountable, Offerup does not such thing. Sellers list items and then fail to ship with zero accountability. Sellers can do this over and over again with no penalty. So you waste your time looking for an item, pay for it, the seller doesn't ship, and Offerup doesn't care. They also don't remove items when you report them as scams, so you're basically on your own. You might as well go to a crack house and buy stuff with this level of involvement and protection.