I never buy bitcoins at ATMs. It's always unprofitable. The price of bitcoin in the ATM is always more expensive than on the exchange. I think that bitcoin ATMs attracted customers only by their anonymity. If they require identification of their customers, this can significantly reduce the demand for their use.
Lokal Bitcoins - that's not ATM, not BTM - that'ss a p2p direct exchange market for cryptocurrency with an ecrow service. Basically, it's not a problem to leave your data on this service, but they haven't this kind of requirements before; and that's not okay to leave your data on all sites.