You're not missing anything. Two posts were merged. This is the Privacy policy blog post by Slack. There was another blog post (third-party) that talked about changes in their TOS to include arbitration.
https://konklone.com/post/slack-is-now-forcing-users-into-ar...
Re:Slack's New Arbitration Policy
by thetrumanshow on Monday November 24, 2014 @03:26PM
(#8654557)
Yes. If you Google "slack ycombinator", you'll see the original title in the results (as of 12:26 PST). Edit: also, as another commenter said, it was merged.
Looks like another thread was merged here.
EDIT: I have to be missing something. Half the comments here talk about arbitration, but that word doesn't appear once in the blog post. Was it edited?