Problem is, it's impossible to distinguish a rege-quit from an authentic problem with connection/computer.
It's not impossible. Generally it is pretty clear from the context. Generally a true ragequit will happen right after you have dealt the offender some critical blow to his game (e.g. the Ring-bearer is about to be overwhelmed, etc.), and often the context can be supported by the chat transcript.
I would ask that people try to be reasonably certain that the person really did ragequit (and not just have an internet problem) before you report them here. It is not an offense to have crappy internet, which is generally outside of the person's control.
At least the timeout should be sorter. 5 minutes to make a choice is enough. How long is it exactly now?
I think it's about 10 minutes, though sometimes it seems like it's a little shorter than that. I believe the time is an estimate of how long it might take to restart a computer and navigate back to the site. In my experience it's a pretty close estimate. There have been times when I've been forced to restart my computer, navigate back... and still not quite make it in time before I get the auto-loss. So, I think the time period is about right.
I think it's great you don't immediately lose upon losing your connection, or leaving the game room, because there have been times when I've needed to switch the game to a different (more portable) computer in order to keep playing. I think the ability to do that is a great feature.
My compiled list has been updated. I chose not to add diaprel, because I'm not seeing any motive for purposefully "ragequitting" a game before it has started. Looking at the game link, it seems to me like the guy was never really there, and for whatever reason failed to take his table down.
Here's the updated list. It should be noted that I have not personally examined all these games to see if the context really does look like a ragequit, or whatever the charge is:
Adofo x1 (ragequitting)
bagieta92 x1 (ragequitting)
buttagash x1 (ragequitting)
Codenm x2 (leaving without conceding right after victim joined his table, ragequitting)
Cuthalion x1 (ragequitting)
diaabel x1 (ragequitting)
hercous x1 (ragequitting)
jholz72 x2 (ragequitting)
jonlbs x1 (ragequitting)
Met x2 (ragequitting)
mordorking x1 (ragequitting)
O1oLo x2 (verbal abuse)
pawcio04 x1 (ragequitting)
pyro1111 x1 (ragequitting)
pitomenph x1 (ragequitting)
rfurka x1 (ragequitting)
Smeagollum x1 (verbal abuse)
TUNFU x1 (verbal abuse)
ulloa1 x1 (ragequitting)
Vahag x2 (verbal abuse)
Wertup x1 (ragequitting)