[userbinator]

You should point out how blatantly contradictory these two sentences are...

Our aim is to build an editor that works for all Slack users

disabling the new formatting tool isn't an option that we will be offering

...unless their goal is to reduce "all Slack users" to "only those who don't need the option"...

[mbauman]

It's particularly amusing/frustrating/enraging because they have already shown that it's possible! Up until today, I've had some workspaces with the old (and functional!) text entry, and some with the new one — in the same app!

[BlueTemplar]

See also : disabling their IRC gateway.