I belive you're drawing a distinction between conference call and
virtual interim which does not presently exist. It could, but doesn't.
No, I am not doing that. I know that we call conference calls virtual interim
meetings.
I also attend various working group meetings during an IETF week just to see
what is going on but I do not randomly join conference calls of groups where I
am not subscribed. Are you joining calls of groups you do not care enough about
to look at the mailing list?
Ciao
Hannes