What the response section of a blog is not for, is starting a completely new thread. Have something completely new to say? Start your own blog! What to say "Hi", "what's up?" or "Aloha" to a friend that just posted or responded? Use email, a text, group me, snap chat, twitter, kik, instagram, or facebook to name a few. Call me crazy maybe call them on the phone? But don't fill up the response section of a blog with meaningless crap.
Just sayin'....