Huh.. is RIGHT. I've TRIED to participate in a few. Hopeless, was all I ever got...
Some folks have had trouble commenting on live threads while using wireless handheld devices like cell phones and tablets. Those on laptops and desktops haven't had nearly the same experience during live threads.
That is, unless you're using a dinosaur computer on a dial-up connection. Those folks have also had trouble keeping up on live threads.