@knc1: Please continue offering md5 files for users who know how to use them. Don't read the following lines
As you don't like the Ubuntu documentation which is trusted by many users I'm sure that you will never include md5 directions in the jb thread. You would spend ages complaining that a bit is missing here, unclear there, not properly formatted, yet another OS is missing, too hard to read, or too long to include it.
The md5 check is indeed not so important that it makes sense to write and modify directions for the next years just to find out that the Kindles got replaced by something else while you still don't approve and include the directions.