FRIENDS USING VENMO - YOUR TRANSACTIONS ARE PUBLIC BY DEFAULT.
I signed up for Venmo this morning (simple PayPal alternative) and was presented with a stream of transactions my friends made. Not the amount, but both names and the description - X paid Y for Z. Your transactions are a regular post, and you have to select public/friends/private.
Not OK IMO. I'll PM those of you who showed up in my stream.