Spoiler is a free Slack add-in to warn your team of possible spoilers. Want to discuss The Force Awakens but a certain someone has not gotten around to it yet? Be the courteous one and warn your team that a spoiler lies ahead.
Click the button below to install the app.
From any Slack channel or private group simply type:
/spoiler Darth Vader is Luke's father
Optionally include a subject or title regarding the spoiler:
/spoiler Darth Vader is Luke's father [You'll never guess who Luke's dad is]
A bot will respond with a message indicating a spoiler with a link to reveal the text for each individual.