The IPFire project is using Bugzilla for tracking bugs. It is located at: https://bugzilla.ipfire.org/
A bug has to go through various states until it can be regarded as resolved. This is called a workflow which is defined over here:
The support forums are what there name is. They are just there for support. They are not a resource to report bugs and just leave it there. There are so many posts made on a day and nobody can crawl through all of them and extract bugs from them. If you want to see a bug fixed and you are sure it is actually a bug, open a bug report on the bugtracker.
Mailing lists are not a resource for reporting bugs, either. The reasoning behind that is similar to the support forums. You can however get in touch with people there who can help you to confirm that something is a bug.