You're right about the texture adding character. On my own projects, skipping the filler means choosing a finish that soaks into the pores, like a thin oil-based polyurethane applied with a cloth. It protects the wood while still highlighting that natural roughness. Just be prepared for more coats to build a durable surface, and let each coat cure fully before adding the next.

I mean, stress relief turning into a side hustle is a pretty good problem to have.