From a strategic point of view, it's not always the best idea to remove a hater comment - oftentimes, it can prompt nicer people to reply defending you...and it spitballs into a chain of search-ranking-improving audience engagement.
That said, if people are dicks when I have someone on as a collab, I tend to either reply, or delete the comment.

kill them with kindness.... some trolls turn into fansMostly, I just ignore 'em. While it's fun to smack someone down with a good comeback - you're telling the people whose comments you didn't reply to that you value them less.
kill them with kindness.... some trolls turn into fans