Board Thread:Support Requests - Getting Technical/@comment-25392877-20150816034658/@comment-24173435-20150816035555

To add chat:

Go to your wikia > Special:WikiFeatures > Scroll Down to where it says Chat > Click Disable or Enable

You can also ban users who spam your chat or wikia. Also, you can read here for more info on chat:

http://community.wikia.com/wiki/Help:Chat

Hope this helps :)