Agreed. Like how Digital Ocean lists their storage as S3-compatible. Amazon's on the other end of it there, Amazon's product's APIs have been copied and a competitor uses Amazon's product name in the competitor's marketing.

Digital Ocean is not advertising that they're AWS S3, just that they're S3 compatible. Like a processor that's x86 compatible, even though it's not actually an Intel 386, 486, etc. Like when computers used to advertise they were IBM compatible even though they're not an IBM PC. Like when store brands of toothpaste say "comparable to Colgate FreshWhite" but they're obviously not Colgate. Like when a startup calls themselves "Uber for horse rental" even though they're obviously not Uber.