Rare Satoshis are NOT ordinals.
Ordinals is the system for enumerating sats. There are no "rare" sats without the Ordinals system. The Ordinals system turns each sat into a non-fungible token. You can trade individual sats only because they are non-fungible in the Ordinals system.
Inscriptions is a system for inserting data into the block chain and associating it with an individual sat. Inscriptions are frequently and mistakenly referred to as "ordinals".
I don't like anything related to Rare Satoshis or Ordinals and consider it all spam on the network.
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.