All Adobe applications, whether they are bought as a perpetual license or as part of the
Creative Cloud, are now required to use the same install process. This requires you to have an
Adobe ID when installing the software. Doing this will save the serial number to your Adobe
profile, which can help Adobe when handling customer support issues or if you move
Lightroom to a new Computer.
The other benefit is that Adobe can improve the product by analyzing workflows in greater
detail and can ultimately present tailored content and help based on your unique workflow.
However, you will have the ability to opt out of data gathering by going to Help Lightroom
Online Manage Account and going to the Security and Privacy section.