Stands, to couple, or not to couple, contradicting products and positive reviews

There are many practices/products intended to "couple" a stand-mount speaker cabinet to the floor of a room (spikes, adding mass to the stands via sand/shot, specific bolt-on stands for certain models, etc.).  Conversely, there foam speaker pads by Auralex and others, which are intended to de-couple or isolate the speaker from the stand, with rave reviews of audible sound improvement.  

So which is right, should I try to "connect" my speakers to the mass of my house, or do I want to "float" the speakers so they are free to resonate on their own?