NewMember with Technical Questions and Issues

Hello, everyone. I recently joined this site and I am a bit confused. There are various categories of forums and groups, but every time I go to one, it sends me to a page where I can make a post. I cannot view any other posts within a category or subcategory. If I go to a main category, it shows me completely unrelated posts. However, if I go to the main page of the site, or to Forums, I can see the latest posts from various categories. Also, on the main page, there is a link to create a new post, but there is no way to choose a category for it. Perhaps, that screen would be displayed once I wrote the post and hit submit. In any case, I went directly to New Similar World's Members section, hoping that it would post there. I'm sure this belongs in a technical forum, not one for introductions. Please feel free to move it there or to ask me to delete this if it's inappropriate.

As a side note, I am a totally blind user who uses the NVDA screen reader with Windows. While the pages are fully accessible, there appears to be no easy way to navigate many of them via heading, list, separator, etc. This means that I must literally go through every link on the page or try to use the find command to locate a specific topic or link. There are headings when I choose "All Topics",though. This is very disappointing, especially given that this is a text-based site, where implementing such things should be relatively easy.