[jltsiren]

The author's answer was:

> But if I had to summarize it in one sentence, it would be that taste comes from practicing the skill of research, keeping your focus always on identifying what works and what doesn't.

Instead of following general guidelines, focus on figuring out what works and what doesn't in each specific situation. Keep doing that for many years, and your taste will develop. Remember that you are training your intuition, not developing a set of exact rules.