Activation is a pain sometimes if things go awry, yet the real culprits that created the need for activation are the pirates.
One alternative to insuring that your software is always available, is to invest in a second drive and create a clone image of the OS with all activated software, and then use this image and save the "Master" drive as your image source - only updating the softwares as needed to keep the "source" as recent as possible.
A bit of a procedure, but a good way to insure you have the important activated software at your disposal.
Comparing what Stardock is doing with Activation to Sony's hidden issues is a bit off base.
The only person who would lose would be the one who does not own the product key (serial number), as it should be.
Stardock has the records of who owns which keys, and can verify this information if anyone runs into an issue.
If I am not mistaken, Stardock can send you a file to place in your sub-directory to activate the product if you contact them via e-mail.
You can activate by sending information to Stardock via e-mail who will reply with a file you need to copy to your computer. So you can copy that file to that PC and it will be activated.
You should be able to install on all 3 computers. If you have a problem & hit an activation limit at any time, you can e-mail support@stardock.com who should be able to reset it for you.
Each sig.bin is per machine though, so you cannot take the sig.bin from one PC and use it on another.