Having Pollmaster reply in public and/or private threads

I'm having issues setting up the right permissions to enable Pollmaster to post polls with the command pm!show <label> after I've created the poll in a bots-only text channel.

I've ensured that the bot has permissions to create/post/reply to threads by ticking "Send Messages in Threads", "Create Public Threads" and "Create Private Threads".

Has it simply not been implemented yet ?