This plugin is for servers that have a hard time handling chat-bind spams, with this a player can only say the same thing ever X seconds.
By default the player can only say the same thing once every 120 seconds, or until their cache loads up at 60 chat messages.
Originally designed for my TF2 murder server, where muting/gaging players because they pressed a chat bind would impact gameplay.
sm_uniquechat_display - Display a chat message, 0 - Off, 1 - Telling the message is redundant, 2 - Displays the time before they can say it again.
sm_uniquechat_time - The maximum amount of time to store a chat message, 0 to disable time checking.
sm_uniquechat_max - The maximum amount of chat messages to store in the cache.
sm_uniquechat_ignoreflag - If the user has this flag then they are ignored from any checks. -1 - Ignore every one (Disables this plugin), 0 - Ignores no one.