It’s interesting that the Star Sound products are so dismissed by our resident engineers who unless I’m mistaken have never heard any of their product offerings. There’s plenty of information on their website that explains what their stands do.
A company that’s been around twenty plus years, sells over 500,000 units and offers a money back guarantee must me doing something right. There’s quite a few Mechanical, Material and Electrical engineers on their staff so it’s not just a marketing company.
http://starsoundtechnologies.com/aboutUs.php
In one sense you are correct. Any company that manages to go on selling its products and making a profit, etc, is doing 'something' 'right'. i.e. it continues to make a profit and keep the incomes of those involved flowing. Plus also as a side-benefit, making many customers happy.
But there are some snags if you try to stretch that further, as evicenced by many examples in home audio.
The reality is that even a slight movement of the head, or equipment, or a change in volume, or speaker unit temperature, or..., or..., or..., can cause an "audible change". As will someone's expectation, or having just listened to something - which can *physically* alter the ears, not just mental changes in what you listen 'for' - etc, etc.
Add in that all this will vary from person to person, case to case, etc. And people will try something and 'hear a change' - or not - due to a cloud of causes. Not always for the reason they assume. e.g. people rarely use a head-clamp to keep their ears in *exactly* the same place when doing comparisons having altered something else. :-]
So they may then decide something is an 'improvement' - but in practice other variables may actually more significant but not identified. And the effect of a chosen 'solution' might be just as well done by other, simpler, means they didn't include in the comparison.
I can't comment on this specific case. But over the years I've seen countless claims for 'improvement devices' which fall into the category I came to call MOOM - Mountains Out Of Molehills. For myself I test them simply by moving my head a bit, or moving something like the speakers or furniture a bit, or opening/closing the room door, or changing the volume a couple of dB. If the percieved advantage of the new 'device' is bigger than those effects then I wonder if there is a simpler/DIY way to do it. If there is, or if the other changes swamp the audible effect of the device, I decide it isn't something I could be bothered to use unless it cost essentially zip.
So I'm quite happy to experiment with things like carpet tiles or coins, or the 'bumper buttons' or rubbery 'feet' you can buy in DIY shops, etc. Cheap, and sometimes worth using. Spikes can be useful for some speakers on some floors in some places. But not always for the reason people usually assume. It may be because it causes a flexible floor to act as a subsidiary LF source, and *may* give better LF. Depends entirely on the case. But I've never really taken to the belief that spikes 'isolate'. Carpet tiles or soggy rubbery materials do that OK in my experience.
YMMV though. 8-]