Using semver doesn't magically make it okay to make breaking changes constantly. It's still a pain for anyone using your library. Semver explicitly encourages

Using semver doesn't magically make it okay to make breaking changes constantly. It's still a pain for anyone using your library. Semver explicitly encourages you to use major version 0 during early development for this exact reason, it's up to the maintainers to decide when they can be more stable.