When is it worth saying it's Linux? (The H)

It's technically correct, but still misleading. Vendors (other than Debian) still refer to their distros as "Linux" (SuSE Linux Enterprise Server or Red Hat Enterprise Linux). I think newer distros such as Ubuntu and Android try to distance themselves from Linux, probably for that reason. But to the public, Linux based and Linux OS (as RH and SuSE term it) is the same thing.

I guess RMS was right all along, now we're all confused...