A person who offered a careful answer gave you time as well as information.

A considered reply is expensive to produce. Somebody read the question properly, thought about your particular situation, and wrote something that would not exist if they had sent the quick version instead. What arrives looks like a paragraph, and what it cost was part of a day that was already full.

When you get one, thank the person for the effort as well as the content. Then tell them later what you did with it, since the surest way to make careful help feel worthwhile is to show the person where it went.