Bander if you want user experience please tell us the speaker brand and model. Then with some input from others on YOUR speakers you might as your op states 'get it'.
I don't get it
Why would a designer of high end speakers dis recommend the use of after market footers for the use of vibration control under his speakers? The speaker in question has lousy little rubber pads under them and is sitting on carpet. I actually wrote to the speaker maker for suggestions and got his recommendation to not use anything extra.