All my community copies are exactly the same as the retail versions. For those unable to responsibly purchase my games and supplements, or for those who are unsure if they will enjoy them, I encourage the claiming of a community copy. I also encourage that those who do find they enjoy my games from a community copy buy another of my games to pay it forward :)
As to your other question, Powers Better Left Untouched is just the term I'm using to describe all of the abilities offered in this book. Each of them adds a little more complexity and a new option to take with your mech. The implication is that these powers (while incredibly useful!) may come with some detriment or hidden cost, beyond the manifestation.
We all know we shouldn't read the Latin from the glowing tome. And yet....
I hope you enjoy CROW, and that it brightens your games of NOVA with just a little bit of mysterious, perhaps dangerous options.