If I already uploaded a score, can I upload a higher one later?

I read somewhere that Cybershadow and deadcode are the ones doing the updates now, do they read these forums?
Anyway, I thought of a couple of suggestions to make the gameplay a bit better.
1. Implement a "call vote" system, to kick abusers, almost all games have something like that, if someone is ruining the game, players vote on him for a kick.
2. "Auto AFK" option, if the player is inactive for more than a specified amount of time, some players just join a game, then have to go or something, I dunno, but they forget to quit/type afk, quite annoying when you have to wait that long ( besides if its a shopper game, there's an extra crate for the next player every turn, quite an unfair advantage.
3. "Mute playe" a feature to allow you to locally mute a player, who's being annoying/spamming all the time. <Thinking of Alexkidd and a ClownFL>.
They're not crucial ofc, but the Call vote is quite important.

Hello everyone, some good ppl I met in the game told me about this site, and  I registered here yesterday ( I play W:A for two months approx ) Its a really useful site, some nice people there that I've met on the game, and some others I didn't, yet, But I'm hoping to
So just Thanks for the useful site, and keep it up!
Cheers, Fcrate.