Trading "rare" satoshis is not spam. You are literally sending and receiving bitcoins and nothing else, so I don't know how you could consider that to be spam.
No satoshi is more rare and more special than any other. It's a made-up concept created by spammers who were smart enough to invent it to make some money from the weird market created around it. All satoshis and bitcoins are the same. If we shouldn't buy into the concept of "dirty" and "tainted" bitcoin, invented by custodian services and their blockchain analysis buddies, we also shouldn't believe in "rare" and "better-value" satoshis. What's next? Western-nations bitcoin vs third-world BTC of inferior quality...