If I can reuse the knowledge gained by understanding it, I go for it. In understanding, I can reduce complexity, or at least try, for future users. Also if I f

If I can reuse the knowledge gained by understanding it, I go for it. In understanding, I can reduce complexity, or at least try, for future users. Also if I find something that is complex, e.g. OAuth, I try to preserve the sources of information I used to reach a decent level of understanding for maintenance purposes. If I'm just doing something quick and not worried about future usage, I just make it work.