Why do the 'multiple sidebars' ONLY appear after a search?

The OP of this thread linked to the 'front page MarketPlace Improvement article' and I just noticed this bit about the Marketplace Search:

"Once results are returned, you'll be presented with multiple sidebars unique to your search. Please note that the sidebars will NOT appear unless a search is made. "

Obvious question 1 - why?

Obvious question 2 - how many people actually read that front page article?

Obvious question 3 - why don't you put that statement directly under the search bar on the Marketplace page, where everybody using the marketplace will see it?

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The 3Dcheapskate (also available in DAZ and HiveWire3D flavours) occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.