Different definitions of "good job" I expect. Making something useful / effortless / fast / a joy to use etc. vs making something that boosts your key performan

Different definitions of "good job" I expect. Making something useful / effortless / fast / a joy to use etc. vs making something that boosts your key performance metrics. Having the friends sidebar always there probably increases engagement with Spotify's social growth strategy which boosts network effects and drives recurring revenue or something. It's all stuff you can plot on graphs and show that you're being effective.