All this matter is typical of the Linden Lab communication for years. Information just (throught the blog that almost no one reads) the day of the update...
The latest changes in marketplace search tools - if i remember well - happened around the Viewer-Managed Marketplace changes around 2015.
The results of the 2015 changes were very clear: we had to pay More Often for the Marketplace ads, because of the instability of the search results.
Many Years passed, we have stopped to fight, most of the outdated products have been delisted and the only choice to promote the new products was to pay again and and again.
Also Paying an inworld land to compensate didnt fix much, just another new fee
I just want to talk about a distant past,
In this past we just had to be successfull to be top results, and the best sellers products were there forever we didnt need to pay ads, we didnt need any flickr, any promotion, we didnt need to "spam product" the marketplace, we didnt need a LAND.
Yes, that was my experience an experience of a marketplace that was self sufficient.
Thanks to have killed us one more time by wiping search results.