The reason bananas are frowned upon in chatbox is because they draw lots of attention. People who are using chatbox are usually at work Or school and want to remain in contact with their friends on their break or throughout the day.

So if someone asks you to stop posting bananas please respect their request. Its a courtesy to your fellow gamer. Also if you actually contribute in the chatbox you'll find it a much more informative experience and you might learn something.

I'm Sorry to see that Cero was banned from it but it goes to show you that sts means business.