@Arjay @rhyn it's a per-server thing, but there's a general community understanding that certain topics - while acceptable - should require a second click to avoid having a forced presentation of divisive or inflammatory content.
It's also great for punchlines 😃
See for more background: https://github.com/joyeusenoelle/GuideToMastodon#what-does-cw-mean
@jaz I can definitely dig it. #implementing!