[JohnFen]

I could not disagree more. This sort of thing is a public service. Even if only a dozen people find it valuable, it can be exceedingly valuable to them. It's worth putting this sort of thing on your website for that reason alone.

[Cerium]

In complete agreement, I will add an anecdote from my experience:

I have a tiny hardly updated blog where I post stuff I do and assume nobody at all will ever read it. A month ago I got an email from somebody asking about a detail because her granddaughter's toy has the same problem that my daughter's did. It is so rewarding that some work I did for myself can continue to have value for people across the world.