That would be tough to do. That's more than a month, but would it be far enough back? After all, my slowest computer only sends something in every 8 days. Many Europeans disappear for a three month "holiday" and then start up again.

Devices are a lot more arbitrary. I lost a few due to a computer crash. Current devices are set to hold enough data for 5-7 days of crunching.
I have 4 computers with 4, 27, 30 and 30 devices, but only 4 devices are active at any one time. It shows 103 in my profile.

Part-time members also make the statistics gathering inaccurate. Everyone isn't running 24/7. One 24/7 member would be the same as 12 two hour members.

Many may be bored. I wouldn't worry about it too much. I think you will see another jump when some new projects come online, especially from different scientific areas of expertise or sponsors. The AIDS project brought in a lot. WCG has a lot of unused server capacity. Bring 'em on.

i also favor keeping a tight control on reports of the number of active computers.

perhaps '# of computers that have sent results within last 30 days' is close enough.

i have seen too much loss of credibility and communication at other projects.

They are shown as "retired" if they have switched to another team. I'm afraid yours must have just lost interest.

andzgrid, I was explaining the difference between leaving a team for another, and just losing interest.

Yes, you are right. And what I find is that many of them have not reported in several thousand hours, some well over 10,000 hours. One person has not made a single return but has been a member of the team for over a year. I don't think it is right to consider them a member of the team or a contributer to WCG.