I'll bite, since it was the same lobby as sentinel.
sentinelrefusing to rep an AFK player; then repping yourself ultimately leading to EXCESSIVE_SUBS"
Same reason. Not against their rules. At least not any reasonable way I would twist them. Apparently masternoob has other ideas, and I would love to hear his logic. Apart from the part of listening to him speak again.
The funny thing is that I was the one who mentioned "they will likely join in 20 seconds" as the "afk" (crashed) players name was mentioned in the chatbox as having joined. So he started counting down from 20. If he had waited 30 seconds, the player would have actually joined. So 20 seconds was a pretty good guess imo.
Anyway, after he banned our sniper (the player who was taking a while to join) I repped myself, not wanting to bother playing (medic on viaduct HL, which is cancerous); since the sniper was actually my friend who had invited me in the first place.
I doubt I'll bother appealing. 1 week is nothing, and odds are as soon as tf2stadium fixes a few of its bugs and cleans up the website a bit, I'll just use that for lobbies.