I cant wait to see what comments come in about your post. Its mothers day so hopefully everyone is in a charitable mood.
For myself, I am neutral on pads for your bookshelf speakers. If you like them and feel they add something to the listening experience, keep going.
I believe the science supporting any audible benefit may be non existent, but there will be audio reviewers that will write something to support the idea.
Just as an fyi, before I joined AH and before I became much more focused on the science behind my hobby, I bought some bamboo slabs to put my bookshelf speakers on. I was so happy with them I got a bigger slab of bamboo for my receiver to rest on. I love the way it looks. Does it sound better? Of course it does. I paid for that stuff so of course it does.