On Jun 27, 2013, at 8:06 AM, Arturo Servin <arturo.servin@xxxxxxxxx> wrote: > "must have attended at least 5 meetings of the last 15 and including one of the last 5". > > may be a good compromise. Also, I would suggest "one of the last 6" (instead of 5). I guess in two years the IETF does not change too much. I think Olafur's suggestion is a good one, and I tend to support it, but bear in mind that the problem is not the IETF changing: it's the former attendee changing. We want them to return to the well from time to time to take another deep draught, so that they do not lose the unique flavor that the waters bear.