An edit was just suggested to my question, replacing "What's the best way to ... ?" with "How to ... ?"
I approved the edit, since SE automatically gives a warning that questions containing "best" in the title might be subjective and liable to be closed. But on looking around a little, I discovered other questions asking about the "best" way of doing things: e.g. What type of paint should I use to decorate a kitchen appliance? and How do I choose which adhesive or material to repair action figures? The policy against questions about the "best" X presumably isn't absolutely SE-wide either, since there are entire SE sites dedicated to recommendation questions (Software Recommendations and Hardware Recommendations), so this looks like something for each site's community to decide independently.
What should the Arts & Crafts SE policy be on questions about "the best way to do X"?
- close them as primarily opinion-based?
- allow them, perhaps with some kind of quality restriction?
- something else?