Well, in the enthusiast circles they are unpopular.
Compared to alternatives, Cherry has barely innovated in the past 20 years. Their switches are scratchy. Browns are barely tactile if you compare them to the competition, often jokingly called "linear with sand in it". The blue has much better alternatives using clickbars instead of clickjackets and clickies are much less popular in the enthusiast space, because they care about good sounding thocks. The lesser known colors are all extremely heavy. MX Clears (as parts, for making frankenswitches) and heavily lubed Blacks (particularly with housings produced before the 2000s, aka "Vintage Blacks") have a small following,
but that's really it.
OEMs are only very slowly catching up to this, but they are. A few months back we even had the first OEM board with Zealios switches!