I can see how it might come in useful if a newer version of something is causing problems on a particular machine.
But you do realize the majority of software on that page is either freeware or open-source to begin with, right?
I'm planning to put together a list of good free software. So please send some suggestions to me via PM.
NOTE: Make the subject "Suggestions for free software list". Also if you can write a little description of the program and send the link that will help a lot.