SIEGES, good idea, but it's really lacking that extra something!
Seriously, I like the idea of SIEGE games and I do play in them, but I tend to forget that the games are actually Siege games at all and just think of them as normal friendly games once they're in progress, because the is no recorded consequence of a Siege victory.
If you win a tournament it gets added to you list of accolades on your profile. I propose that Sieges should be recorded somehow too. Perhaps if someone holds a Siege board for 10 consecutive games then they get the Colour portcullis and timeout length displayed on their profile until the next player to hold 10 games consectutively does so.