How integration of communications with discuz
From research it looks like "discuz" is some PHP forum software.
Read the page on single sign on: http://question2answer.org/single-sign-on.php I think that is what you need. It will allow your existing forum members to use Q2A with the same account.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.
April 20, 2021: Q2A 1.8.6 released!