Fed up of shite search results where people have put Apollo Bike not Colnago, Sunrace like Shimano, or similar keyword spamming. There is a specific eBay report form to get such listings removed (misuse of a brand name for search and browse manipulation) but, as you'd expect, they do absolutely nothing.
That's been going on for years, probably since Ebay started.
I've seen:
C Record era referring to Athena or other lower group stuff,
eroica for anything old,
fixie for practically anything.
Another browsing manipulation is where Buy it Now listings offer variations of the same product, eg different colours or sizes. It means you don't have to have a separate listing for each colour etc. But Ebay lets you include anything in the listing and also differents prices.
If you include a cheap item for 99p along with the actual product, eg £9.99, the listing shows up as "99p - £9.99" and gets to the top of the search/browse results sorted by price.