Why does Atom need our SSNs? No other platform does.

another reason to love atom...not.... first they fock u for 30% fee then ask for ssn

You see it more and more often, because marketplaces, affiliate programs and crypto exchanges have to comply with strict legislation. This concerns the collection of taxes. Programs such as Google Adsense and Amazon Associates have been asking for this information for years (including a W8-BEN form, for example) and you will see that other domain marketplaces will also comply with this in the future. You can be angry with Atom, but Atom is little to blame for this.