i was wanting to at least pay for access to nostr.wine since it seems to be the top paid relay. i've seen one client in the wild that spam filters the global timeline by ignoring all unpaid relays, which is effective, even if it does throw the baby out with the bathwater.
bought a little bit of Litecoin on Coinbase (don't know of anywhere else that accepts a debit card and allows customers from Norway) that i'm transferring to Kraken just to fill up my Lightning wallet with some satoshis for paying relays and a little zapping.
far from all non-spam posts come from paid relays. you're blocking quite a lot if you're only using paid relays, including all posts from new users. paying for a relay is more of a nice-to-have than a necessity.