I'm trying to design things that serve a practical purpose. Mostly film making gear and parts for CNC machines.
For my designs I try to also publish * the original file (usually Alibre/Geomagic) * technical drawings with dimensions you can always ASK ME to EXPORT TO OTHER FILE FORMATS. STEP, IGES, ProE, ACIS should be no problem.
I consider STL to be a lowest-common-denominator output-only format! It's not a format to be edited.