There are two non-native apps I use frequently on OS X, which are both rather jarring and tawdry in their deviations from the platform norms. Slack is the seco

There are two non-native apps I use frequently on OS X, which are both rather jarring and tawdry in their deviations from the platform norms. Slack is the second-worst offender. It feels less native than many websites do. The other is Rubymine, which on Mac now includes its own embedded Java runtime. It's significantly worse, but they are neighbors on the spectrum. Slack suffers less because it's mostly just chat, which can be done even in a Terminal window (e.g., IRC) without suffering that badly. But when you try to do anything in Slack other than just chat, the non-native kludge factor quickly becomes obvious and irritating.