Things have changed a bunch over the years. My A-Model Avid Flyer taildragger has an 11 lb tail weight. The empty weight of entire plane 396 lbs.

Bit in defense of our more modern models, the main gear has been raked forward quite a bit since the early Avid / Kitfox days resulting in even a light version can have a 60 lb tail weight. So the reality is that when talking about tail weights, one has to know specific landing gear model and/or axle center based on a common datum line.