Personally I do believe that this a good way for those users, who 'playing' a lot with their OS, special Windows 10. It could/would/should sharply reduce the time of Re-Installations of the OS! Special those user's who hacking and/or tweaking Windows, this apps could be very useful.
Hmm.. I originally came to this site for the WHDownloader but, it doesn't require you to have an MDL account and it seemed pretty straight forward to use so, I never bothered signing up. I recently came across the Windows 10 Login Changer which required you to have a MDL account to access but, after joining, I wasn't sure how much I would be frequenting the forums.. After seeing this tool hosted here and some of the other content here, I'm glad I signed up. The thing is I'm a member of so many forums already and I have to be certain I can truly benefit from and contribute to the community before I join any forum. Is mirinsoft a first party MDL site or is it third party? These are just the kinds of things I like to tinker with