Depends on whether you see them as transactions or just spam. 

IMO it l it's a wasteful use of a scarce resource that affects users trying to make actual transactions. 

A simple transaction is sending money from A to B.

A whirlpool transaction or similar is sending money from a bunch of As to Bs, still valid.

An ordinal transaction is sending a few sats to yourself with a bunch of BS non-financial data attached that fills up block space and places a burden on node operators and other network users. That's spam. 
https://image.nostr.build/ef97dba8e1ccbdb1bd15aab98fe7ff52833bf9b529171e02a8099e3595daad8c.jpg