Every page on OpenWiki has a Discussion, reached from the tab at the top left of the page. It is where you raise problems with an article, propose changes, and ask questions.
This is the one part of OpenWiki that is deliberately not a wiki. On most wikis, discussion happens on a page that everyone edits: you scroll to the bottom, add your comment by hand, sign it by typing a code, and hope nobody mangles it. That has real costs — people edit-conflict with each other, replies land in the wrong place, and anyone can alter what you appear to have said.
Here, a discussion is a set of topics, and a topic is a set of messages. Each message is its own record:
You do not need an account. A message posted without one is signed Anonymous, followed by the IP address it was posted from — the same way unregistered edits are attributed on Wikipedia.
That address does two things:
If you would rather not publish an address, register a name: messages from an account record the account and no address. Addresses also change — if yours changes, older messages of yours stop being editable, because the only claim you had on them was the address.
Site administrators can run OpenWiki with OPENWIKI_SHOW_ANON_IP=0, which shows a short pseudonym such as #4b7c instead of the address while keeping everything else the same. See OpenWiki:Privacy policy.
The person who started a topic, and any administrator, can close it. A closed topic stays readable but takes no new replies. Close a topic when the question is settled — not to end an argument you are losing.
They are not for general chat, and not for material that belongs in the article.
Special:Discussions lists recent messages across the whole site, and every page with a conversation on it. The discussion tab on any page shows how many topics it has.