Sure, I could answer your email, and instantly forget about it. Or I could leave it unanswered, such that it lives in my mind exerting a slow, daily pressure, and I feel your spectral presence always beside me for countless weeks, and in a way, wouldn't you prefer that?
By age 30 everyone should have that one friend who can ID the bird you saw from the most terrible description while still being delighted to share their knowledge and experience.