I Think A 'mute' Button Would Be A Good Idea.I mean a 'mute' button next to the picture and profile name in the Q&A section.
Pressing it would make the person's posts invisible.
Many people have many different reasons to not want to see certain members posts. With a 'mute' button they would be able to filter out questions and answers from trolls, blocked users, rude people and many others who are subject of complaints in the Q&A.
There would also be less 'questions' with complaints about others.