My suggestion regards the Trade channel and the spamming that is in it.
Please do not straight away think, "just turn the trade channel off" because my problem does not lie there.
When you are trying to trade, you often get people spamming the same line of text again and again and again. This would be fine, except that means, If I want my trade items to be seen, I also have to spam the channel again and again and again. And so will the next person, and so on like a big mexican wave of spam.
My suggested solution is make it so that you can only send a trade channel input once every 10 or 15 seconds. This would give plenty of "screen time" for everyone.
The Tade Channel
Horogan Sivoris