To me it’s like asking for a mass DM feature. Discord can’t stop you from messaging 100 people about an exciting new investment opportunity, but it’s not a workflow that we’d want to encourage so there’s not a UX primitive for it. (A sibling comment asks why Facebook and Google messaging apps let you export other people’s messages; I think they’re wrong, driven by an earlier era in UX design when people were focused much more on user power and much less on its downstream consequences.)