Most recently I was looking for a countertop hot plate/burner to replace one that finally broke (filament burned out after 15 years). Searching within the Appliances / Cooktops category, it is filled with random apparel like t-shirts and dresses for < $1. Try filtering by price to any interval and it's random kids' toys, arts and crafts supplies, tools, and sex toys. You're lucky to see one or two actual cooktops per page. Filter by 'Fuel Type: Electric' and there are only 5 actual results plus an impact socket even though there are hundreds of actual electric cooktops if you filter by brand name or surface material. It's insane.
Most of the sellers and brands have names that look like someone mashed their keyboard. At this point the only way to use the site is to already know the exact brand and model you want and search from google.