[avdempsey]

Sure enough, the rich text formatting is copied. The workaround I have for this is the Get Plain Text app. It strips all formatting from copied text (either automatically or on a keyboard shortcut). Sad it's required for this use case. But at least this works.

[moe]

It wasn't required a day ago.

Slack can't seriously expect us to apply clumsy workarounds to their single most important feature (text-entry) that many of us use hundreds of times per day.

In particular since the solution is as trivial as adding an off-switch.

[exolymph]

On MacOS, paste-as-plaintext is Ctrl+Shift+V

(Or I guess Cmd+Shift+V)