Hey everyone,
I had requested the Spacial Team to set up HTTPS for the forum due to concerns raised by a handful users and they gladly accepted that suggestion and implemented it.
Apparently the HTTPS version is not the default (yet - I'll ask and see if we can change that as well), but you can update your bookmarks or just type the https in the address bar to use
https://support.spacialaudio.com/forums and it will work and show the forum now.
I'll update this post once I know if setting HTTPS as the default and changing the link on the official spacial website is possible and done too.