1 - Maybe
2 - Already have this (Hover over the buy button)
3 - I'll do something about the F* tabs.
4 - I agree that Slope shouldn't require 2 or more players but I will disable giving money for going more than 25% of the way unless there's over 2 or 3 people on.
5 - What scoreboard in the right corner? We don't have any scoreboard there, we have death notifications though, if that's what you mean.
6 - Good idea, I might do it.
7 - The scoreboard is designed poorly, I'll try doing something about it.
8 - I'll let nonSENSE comment on that.