imo the random drawings for server events can be unbalanced but I get that it's random. It's more bothersome to me that the weekly leaderboard is nearly always the same people getting the same prizes.
Those are usually staff members and whoever spends the most time in #💬・general
General is simply not quality conversation most of the time, and rarely has anything to do with Tatsu... if you can say one or two words vaguely related to a subject and keep emoji usage within a certain boundary you'll never be accused of "spam" but on the whole most of #💬・general will be useless chatter and repeated meme conversation. Just because it's not a gif doesn't mean it's not a meme! Yes quality "general" topics do crop up as well, I'm not saying it's all bad.
But there's a lot of sudo-spam, and taking part in that is really the only way to "win" these prizes, so far as I can tell. 
Anyway, we have a lot of great members that contribute a lot to the enjoyment of playing this game, are a big help to newcomers, etc. They aren't big chatters but they do contribute a lot.
Could the weekly leaderboard incorporate some sort of cooldown for winning, so that if you win one week you can't earn score for the next couple weeks? That way we could see more active-but-not-spammy members rotate through the leaderboard?