Security bugs!
First, the HTTPS version of the site uses a TLS certificate from CAcert, which is not a trusted Certificate Authority. It should be switched to one that is trusted to protect users' passwords and accounts, especially considering that price is no longer an issue thanks to CAs like Let's Encrypt. I would also highly recommend implementing preloaded HSTS as well.
Second, the page
Accessing the TASVideos Channel mentions that the service requires installing the root certificate for CACert, again despite the fact that it is not a trusted CA, which makes users vulnerable when browsing the rest of the web. This should be removed after fixing the previous issue.
Third, I'm seeing the note "Powered by phpBB © 2001, 2005 phpBB Group" on the footer while browsing the forums. If phpBB has not been updated in 14 years as that note suggests, then it is also riddled with
security issues that are patched in the latest version, and it should be upgraded.