There is something called chatango.
I used to be a forum mod for a couple of sites and have good experience with HTML and coding.

With chatango you can create a chatbox and give certain rights to the people you want to have them such as banning, deleting, admin, etc.

I recommend it if you are looking for a chatbox BUT i dont recommend it unless you have something more rewarding for posting because with it NO ONE will post again unless it is for reviews, help, or detailed questions.

I think this would be better on the network site.

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