On my IPad, it takes three full scrolls to just view the list of forums because of all the room at the top and the long forum descriptions. Even the 3 bar thingy next to user icon requires tapping “read more” to see all the forums. It seems like a minor thing but it’s nice to load the page and have the link to the BBQ Pit right there in case i have to bitch about changes to my favorites message boards. 
See the All Categories box in the navigation bar (just to the left of the word Categories)? Click it, and you’ll get a dropdown list of all the categories.
Thanks. That still requires a click and a scroll though (at least how it renders on iPad). I know it seems like a minor quibble but over years that quibble builds and builds into a fomenting rage and all of a sudden I’m watching Alt-right YouTubers.
Yes, this site requires may more clicks and scrolls in general. I really felt it in my wrist yesterday. Not so disability-friendly.