1. You need to put context into comments. Code is written once but read multiple times, so you should optimize for later case. 2. "Too late" is when bug hits t

1. You need to put context into comments. Code is written once but read multiple times, so you should optimize for later case. 2. "Too late" is when bug hits the client and affects income. If not, then it's not "too late", it's just "a bit late". 2-3% in effort increase to decrease number of bugs (increase customer satisfaction) by 15-20% is huge win. If you will not do that, your competitors will do that instead of you.