>I think the use of buy isn’t that misleading. He signed a legallybinding contract to buy twitter. When someone wins a bid to purchase ahouse they might tell friends they bought a house today even thoughthere are still details to work out.

They might, and that'd probably be because they're a first-time home buyer who doesn't understand the process. When you submit an offer and it's countersigned, you are under contract, you haven't bought anything. Source: I was a real estate agent for years and I've owned many dozens of units. You brought up other people misdescribing a different purchase process. It doesn't support op's mislabeling.