If the dev team do more interview session, with Q&A sessions giving the bounty team more resources to post, it will go a long way to improve PR activities.
Hi! The question and answer is a good idea, but it will also require extra time from the developers. If they have resources, such as an additional person in their team to handle questions and answers, I think they are implementing it.
If the team can allocate additional funding for this, then this will be a great way to promote the project.