When I was first learning Clojure I stumbled on a "lack of good documentation" in third party libraries. I'd google around for something that solved the problem I was trying to solve so I wouldn't reinvent the wheel. I'd find, say, a github repo that had a couple of sentences in its README that purported to solve my problem and then nothing else. What the hell, I thought; why no decent doc? Then I realized: the solution was implemented in 40 lines of Clojure. Reading the source was the fastest way to figure it out.

It still happens to me. Every time it does, I have this warm feeling of investing in something of great value.