As soon as it gets good, it's gone!

[Mat Lewczenko]

Just curious, still learning the "ropes" here at BP, I have noticed that some of my favorite threads to follow seem to get to a certain level of responses then get moved tover to a private discussion.

questions:
1) Why?
2) How do I become a member or that group?
3) If I contributed to the discussion, why can't I continue to contribute, why do I get locked out of it?
4) If it's private, why continue to have it show up on the feeds for those of us who cant read them?

If someone could point me to some of the answers here that would be fantastic. This has happened several times now.

[Mat Lewczenko]

So how do I get invited into the private name calling party?