I think starting a new thread is entirely appropriate.
Sure, but the question here is whether or not it
must be the
only acceptable course of action, be it the original thought of the person engaged in the exchange of ideas (also known as "conversation" - see above) or the imposition of rules by those charged with watching what's going on.
there is no easy or convenient way of leaving a marker when extracting a set of posts from a thread
Yeah, I was thinking about that after I posted.
