Although it is logical that team size be added as a criterion for challenges one must not dream: this is not reliable at all for estimating the real power of a team. It does not take long to find a few teams where almost all active devices are under a single network administrator account and thus what can look like a small team may actually be a big one.

The RAC would probably be better but I don't know how easy that could be implemented, both in the stats and in the challenges. And still that would not be perfect with those big teams whose major contribution is on other grids and which can bring back several strong members for the time of a challenge.

But nothing is perfect anyway. Jean.

In theory you are right.
But since Ukraine joins every challenge I guess they don't spend much time reading the titles.
Somebody from l'AF said they joined a bunch of challenges at once and did not read carefully enough...
I have never used the challenge procedures so I am not sure but I wonder if it is possible to pull your team out of a challenge once you have joined it
If it is not possible (or simply not easy) maybe that should be one of the improvements that the techs are considering for a future upgrade.

By the way, when I read one of your previous bright posts I wondered exactly the same: can't this guy just read... the Forum Policy for Members
And for you it is not in a foreign language...

Please avoid bringing WCG's forum down to the level of some British tabloids.
Thank you for understanding. Jean.