Remember, even Twitter hasn't yet solved the spam problem. 

This was my conclusion after thinking about this problem for a while: nostr:nevent1qqs9ereuwvtezefdz7vlqqfx0rwhssyn9vy9dans0ue73pkh3xnd7mqpz3mhxue69uhhyetvv9ujumn0wd68ytnzvupzpwe42kl97st2z7kzp59s0k83fvgnwyuaxwjvr4htfyumx2rknpfzqvzqqqqqqyzvcqw3