To answer your question, no, I truly think no.

Simply because the hivemind update should be coming soon, and together with this update, there are endless possibilities which the creators of Dapps can consider.

One of the possibilities or features is, the ability to organize posts (e.g. adding filters/ categories and so on) as stated [here](https://steemit.com/steem/@steemitblog/update-communities-hivemind). 

Therefore, whilst I agree the posting under thread by Musing.io is definitely cool, other creators should not be worried about the posting issue. Just leverage the functionalities available in hivemind and allow the organization of posts be more arranged.