Please forgive me for being the party spoiler, but I can't let this go without throwing in my two cents worth.
The "Favoriting" of a shop is like putting your stamp of approval on it. Especially so when it gets to the Circles. In the circles for the people looking there who have "Favorited" you, are saying I like what you have and I like your taste, so if you recommend someone else then I trust you won't lead me wrong.
If we all start "Favoriting" each other on the basis of doing each other a favor sight unseen, while I'm always ready to help a teammate, I do worry that mis-using the "Favorite" and The "Circle" idea and plan will bring it to a point that it is useless as a gauge of judging whether or not a shop should be recommended. I favorite when the item moves me to do it, and by extension the shop.
I know that I am probably offending some of you and for that I apologize, this is only my opinion. I would like to know what others think.
M.