I'm new to DNN and could use some help on a robots.txt question. I know how robots.txt works in theory, but I'm on new to how it works specifically within DNN.

So, as you may or may not have heard, starting in April, Google will be changing their mobile search results to give preference to mobile-friendly sites: https://developers.google.com/webmasters/mobile-si...

Long story short, after doing some research and further looking into it, it looks like unblocking JS and CSS may help mobile site performance once this update occurs. 

In setting up robots.txt files on a DNN install with many portals (I know they're global to that install), if I were to remove the /js/ and /images/ from being disallowed on robots.txt (they are currently disallowed), what would the potential repercussions be?