Board Thread:Support Requests - Getting Technical/@comment-26568136-20161012200725/@comment-24551580-20161014222207

A Javascript bot requires a browser to run, so would need a tab to be kept open. It was also not the only type I mentioned.

Most other programming languages will require you to store a script somewhere and keep it running in order for the bot to keep running. So at some point, a device be it a server or normal desktop PC, will need to keep running in order to stay connected to the chat.

You can indeed contact Staff, but I'm fairly sure the only answer you will get back is something along the lines of "sorry, chat bots aren't officially supported by Wikia, we can't host it for you". Sactage used to be doing hosting, but I'm not sure whether that is still going on.