On Tue, 1 May 2018, Noel Chiappa via cctalk wrote: There are several parts of the eBay search system that are broken. I have had items show up that absolutely did NOT match my search, and items fail to show up that definitely DID match. Adding additional OR'ed terms (eBay does OR with comma delimited list in parentheses) sometimes results in FEWER hits, when that SHOULD always give more hits (not all of which are relevant, of course). There is no valid situation where an additional OR'ed term should reduce recall. The change of category is reprehensible. It is an incompetent attempt to increase PRECISION at the expense of RECALL. (cf. Buckland,Grey http://www.academia.edu/11944516/The_Relationship_between_Recall_and_Precis… My claim to fame is pointing out that when looking at the limits, that all four sides of that parallelogram need to be noticed.) But sometimes RECALL IS your primary concern. (cf. trademark search, or rare eBay items) You may tolerate some false hits to get ALL of the hits. If I'm looking for a red Swingline stapler, I want PRECISION. If I'm looking for a side-swivel-head stapler for saddle stitching booklets, I want RECALL. Quick example: there are a number of other items named "Nextec", other than Craftsman cordless tools. But a search for "Nextec" in "All categories" automagically changes to "Power Tools", excluding the others (cellphone accessories, lasers, technical equipment, line of clothing,...) Even the [RARE] Craftsman Nextec cordless power pole pruner is usually not listed in the "Power Tools" section. I am looking for one of those; I do NOT want it excluded.