Take a look at Google Reader, though. They got skewered for dumping that. But despite being shuttered years after RSS was a thing, even then it was limited to RSS wonks like a lot of us who were the only ones lamenting it (and the decline of RSS).

Fast forward to today and 10x to 1000x the number of us wonks are getting an overlapping amount of Reader's value (plus new value) from Twitter. The purging of Reader is a distant memory, but it doesn't mean it's necessarily bad to try a bunch of things and kill the non-viral losers (in a relative sense).