> We want to be respectful

Make telemetry strictly opt-in then, that's really the only respectful way to do it.

Everything else is sophistry.

Not singling you out either, too many projects do it by default, yours at least makes it obvious here that you do and how to turn it off https://authzed.com/docs/spicedb/ops/observability#telemetry so kudos for not hiding it in the basement behind a "Beware of the Leopard" sign.

For open source projects I just find it more offensive, I'd expect closed source projects to do it by default (but I expect less of them to start with) but for open source it rankles much more.