Board Thread:New Features/@comment-168424-20190401202543/@comment-26339491-20190404233007

In the pre-update Discussions you could attach an image or poll to a text post. The post creation flow in Feeds indeed doesn't allow for that. The fact that you can add an image or a poll when you edit your text post later is due to how pre-update Discussions features were ported over into Feeds.

Users still need to be able to edit older posts created before the update, that's why that option is still there then. For brand-new posts, the option doesn't exist - for now. We know that's not ideal, though, and plan to put some more work into the post creation flow.