Not a rant (although regarding eBay rants are well deserved)....just an information.
I recently listed on eBay.es a set of Mordheim figures that I want to sell/trade. I am a very infrequent seller on eBay as the fees and commissions are excessive. I only use it as a "last resort" venue.
One of my friends in UK contacted me a few evenings ago to say he could not find my listing by keyword search (Mordheim, Kislev, Warhammer) so I asked eBay customer service why not.
Turns out that unless you have a "seller ranking" above a certain undisclosed level and a certain number of sales within a given time period, eBay no longer allow your listing to be visible via search on other country eBay sites. So my keyword search on eBay.es showed my listing but not those in UK, France, USA etc, whether by keyword or seller id. The only way for a person looking for "Mordheim Kislev" type figures in USA to see my listing was by item number or direct link.
The visibility used to be linked to your shipping preferences (places where you ship could see it otherwise not) but now it is down to how much and often you sell on eBay.
Means that the saved keyword searches on my account only show me items offered by sellers eBay choose, not anyone with the items I am looking for who want to sell and would ship to me.