So I do know that they apparently use it for anti-money laundering purposes. I learned that once when writing a request to some friends along the lines of "food

So I do know that they apparently use it for anti-money laundering purposes. I learned that once when writing a request to some friends along the lines of "food from south of North Korea", causing them to flag my friends' payments to me because mentioning the string "North Korea" must have meant that I was secretly laundering money that way. Stupidly, Venmo required that my friends explain their transactions, not me, the requester. So the lesson is, you can put jokes into your Venmo payments, but not jokes that imply that you're blatantly laundering money.