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* 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.

*also available in ShareCG, DAZ, and HiveWire3D flavours (the DeviantArt and CGBytes flavour have been discontinued).