The Forum and Gallery are completely separate from the static pages. The static pages also have login capabilities, but that is for the Storefront and Blogs only. The static pages and the forum/gallery use separate databases and so one knows nothing about the other. Several years ago, I switched to vBulletin because they had both a forum/gallery and the ability to create static pages for the front end. But the forum was great and their static page solution was abysmal which is what precipitated the move away from it.
At least for now, though, I believe I'll remove the store login. The store allows you to check out as a guest and I think I'll stick with that. What this means, though, is that if we use the blog feature, it wouldn't be possible to leave comments as that requires you to login. I think we can be just as happy using the Forum's approach to blogging, though, so for now, I'll just remove the login because it will raise the same question to everyone that visits.
This does mean, though, that if you are on any of the static pages, you may or may not be logged in to the forum, but you will only know that when you go to the forum.
This has been a problem ever since forums started getting added to websites. You have to remember your username and password for the forum and a different username and password for other areas of the website. There really isn't a great option unless you use a fully integrated system from a single company that writes all the software as a single package. I have not found that company unless you are willing to pay five (or six) figures for it.
For now, I'll just remove the things that can become confusing.
Lloyd