The community is flooded with messages about drop in sales suddenly from March, to April and now May. 

This is occuring in multiple niches.

The issue is confined to Ebay - many individuals, including myself, are seeing steady if not growing sales from other platforms when Ebay is in decline.

Can you please confirm if there has been some sort of algorithm update to the search function recently? 

Google provides announcements to search algorithms in the interests of transparency, it is in Ebays best interests to do the same to enable sellers to adapt to any changes made and prevent a sudden and unpredictable drop in revenue.

It is also in the best interests to announce any changes made to avoid unecessary speculation and conspiracy theories circling around online.