I cannot even browse existing issues because gitlab forces me through a CAPTCHA. I don’t play the CAPTCHA games – most especially when I need to read content. Please move the bug tracker out of this gitlab private jail, and put it somewhere on the open and free public Internet. There are many ethical problems with gitlab apart from practical access problems.
If devs are attached to the Gitlab software for some reason, there’s nothing wrong with self-hosting gitlab or using framagit.org (which uses Gitlab software in a respectible way).