good point, need moar info on the landing page. nostr21.com for example the payment of 21 sats is to make it easier to operate without spam.. its essentially a captcha. it does allow anyone to tag you there, and allows anyone to read, so it is suitable for both outbox and inbox. if comment spam becomes too horrendous i may change that. having a relay like it in your outbox where you can write reliably means that other outbox clients will easily find you..

i dont care if you use it, it does not pay for itself with 21 sats. what it does is allows me to have a reliable relay for mysel, all my follows + anyone wanting to join. its just an organic relay.