Clicking on the blank avatar gives you the option to login and vote like that. I think it probably should have a button that says login too tho maybe. I believe it's meant to be a fun, wip, experimental site tbf (thats my impression anyway) lol.

nostr:nprofile1qqsvyxc6dndjglxtmyudevttzkj05wpdqrla0vfdtja669e2pn2dzuqpf9mhxw309aergme4dqm8xvmrv9uk27n3d3uhx6mf0fsh5dr0wymkxumdvack56ryddmxsat40q6kvdnz09h8z6msxackxun9d9jzummwd9hkuw358qmrjtcppemhxue69uhkummn9ekx7mp0qyfhwumn8ghj7mmxve3ksctfdch8qatz9u5f75zy is the dev :)