The 'many from over a decade ago' part shows one problem with TODO comments. Very often these TODOs are never done. Really, TODO comments should not exist. When

The 'many from over a decade ago' part shows one problem with TODO comments. Very often these TODOs are never done. Really, TODO comments should not exist. When you are writing some code is the point when you know most about it and is therefore also the best point to write code of optimal quality. Also, for some TODOs I encounter in the wild I cannot really shake the impression that the author is showing off by suggesting something that sounds smart but actually is impractical and should never been done.