My bugbear at present is stations that seemed to do their playlist once, years ago, and haven't touched it since. We have an Indie/Alternative station nearby which plays all the classic artists you might expect to hear in that format and in that location - Stone Roses, Oasis, Bowie, Primal Scream, Kaiser Chiefs etc - but also plays a bunch of tracks that fizzled about ten years ago from artists who no longer have any kind of profile, like Jake Bugg (who?) and The Twang (who?). It's as if they researched and tested and put together a playlist of new and old music a decade ago when they flipped the station and haven't bothered to update it.
The station has a 0.6 share, down from 2.6 immediately before the pandemic, so listeners evidently agree with me.