It is possible for people to spam the chat, it would be nice if there is a function to mute other player(s) by using the “interactive” mode in the scoreboard and selecting the player name to mute.
Also add chat cooldown, something like you can send at most 3 chats in the span of 3 seconds then 1 chat every 3 seconds until a cooldown timer is reach, then they are able to send 3 chats every 3 seconds again. The numbers are just for examples.