What is idea 1 supposed to even mean?
Idea 2 would be nice, but probably not useful enough for implementation. Most of the time, a player knows why they are being kicked. Either due to inactivity or not fulfilling a certain requirement or demand. Many players in big guilds have separate chats (for example on FB or Telegram) too, where kick reasons can be discussed.
Ideas 3 and 4 are in fact already featured in the community wish list under priority and guilds & test mode sections.
Idea 5 sounds worthless. You can demote from KOKL and other God's Leagues already, go up and down like that. What you suggest is something like prestige mode in CATS. It sounds interesting, but I don't know what it would add to the game. Would only KOK winners be able to go to "the second Wooden league"? Because then there are not enough players to fill all these new leagues.
Outfit customisation is always good. Colour costumisation is actually not in the wishlist yet. I like it