I am currently testing out embedding the observation and forecast tables as images, as the markdown for tables is not working yet. Feel free to leave any feedback; I'll probably be tweaking the format occasionally.
1. Sidebar graphics. It doesn't look like there's currently a way to customize anything in the sidebar besides the community rules and the community icon. I can force some creative tweaks using userstyles, but the same CSS code does not work in the Appearance section of the magazine panel.
2. Post flair. Kbin doesn't seem to have an equivalent to post flair at the moment, so keeping users updated on the current intensity of a cyclone will be challenging. It does appear that thread titles can be changed, so that might end up being useful.
3. Tables in posts. Kbin doesn't support markdown tables right now, so the observation and forecast tables in tracking posts would have to be formatted differently than on Reddit.
4. Article images. I guess I can assign an image to an article, and I can continuously update that image. However, I haven't exactly figured out what size the image is supposed to be and every time I think I have it, I log off and come back hours later to the image being all squashed or stretched.