Bests & Worsts Reviews from Amazon

I purchased these for the intended purpose. I have rugs that I do not want to move. However, the instructions included with the product indicate that if you leave the rug in place for an extended period of time it can become permanently bonded with the floor and cause damage if you try to remove it. They recommend moving the rug once a week to avoid this. Why would I want to remove the rug if I purchased the product to avoid having to move the rug? Product works fine but I don't want to jack up my floor by leaving the rug in place, nor do I want to have to move the rug weekly.