Already followed nostr:nprofile1qqsvt0qa6adsn2j3ewsquzcn0u0wradr5e3v67fj3f8txxgpen6n48cprfmhxue69uhkummnw3ezumt9wdekzem9wp6hx6pwd9hsztthwden5te0d3hxg6tnvdejuer4vd4kgmnn9ehhyee0dehhxarjwfjkccte9a49vetx29ux7ksppamhxue69uhks6tswd68ytnr0gghhulj some time ago. Does this mean he's now using his npub?