The few groups that used to do that have stopped making fansubs. Mostly because HorribleSubs took a lot of the market share by just ripping CruncyRoll subs and re-packaging with RAWs.
But now that HS is gone, I'm not sure what's happening to the scene. There is a power vacuum and I'm not sure if anyone took up the space.
There are definitely still anime fansub groups active, although not nearly as many as there used to be.
Mostly they seem to work on shows that haven't been licensed by official simulcast sources, or that are licensed but aren't being released on a timely schedule (ahem Netflix), or projects that for whatever reason they think the official releases haven't done justice to.
Aside from HorribleSubs, these days you can hardly throw a rock without hitting a major streaming service that offers anime. Setting aside whatever free episodes you can get from Crunchyroll et al., Netflix, Amazon, Hulu... the list goes on. And for the majority of people, the services are convenient enough to outweigh whatever video quality advantage that HS or subtitle quality advantage (some) fansub groups offered.
The show I watched was a recent release, but it went through Netflix jail so I guess that's why it got the high-quality fansub treatment. There weren't any official subtitles for groups like HorribleSubs to yoink day of release which bought time for a high-effort group to do their thing.
Isn't that basically crunchyroll taking most of the market by doing sub translations in the first place? Kind of like the netflix / spotify effect on piracy.
But now that HS is gone, I'm not sure what's happening to the scene. There is a power vacuum and I'm not sure if anyone took up the space.