[brazzledazzle]

They used to have scaling issues (maybe still do for certain userbase sizes) so it might not be feasible for them to effectively double the amount of real-ish time updates.

It would be really handy for informational channels where generally you're just interested in reading updates, not replying. Something like that could reasonably live in the right-hand sidebar. Taken a step further, it would be really cool to be able to specify an official informational/status sidebar channel to be paired with your channel. For example: a team channel with a build status channel linked to it by default.