[fraudsyndrome]

Doesn't mean others are in the same boat as you. The team I work on frequently write detailed commits to the point where I can (and have several times) successfully searched information from years ago on a block of code with the ticket number and the developers (even myself) reasoning at the time.

Maybe it depends on the project but I've found myself doing this so often that I won't stop, it's such a small task that has given me so much benefit. If it doesn't help anyone then nothing was lost.

[ArrayBoundCheck]

Why are you searching a year or more back? Is this using git blame?

[shakna]

To explain why a certain block of code exists. When the code came into existence is rarely that important. You just want to know why.

Why does the code fence against a particular circumstance you didn't think should be possible? Why does it call out to something you think is unrelated? Those questions can be answered by a proper commit message.