I really like the idea of this exchange and I've been trying for a week to figure out how to get involved, but all the instructions are *too* specific and cover the concerns of people who already know what they're doing. There are so many assumptions about how this works that are baked in and I can't access them and I don't know what to do?

What does the existing tag set mean? It can't be 'tags you're allowed to use' because it's organized by fandom and the point of nominations is suggesting a fandom to do a thing in, I think? Or is the tag set meant to be the menu we can choose from while making requests? Where's the part where we specify what we're prepared to write for? Will that appear after I submit nominations, which I'm not sure how to do, or do I need to dig up a different link for that?

I've been running myself around all these links to more information that is not the information I need, giving up, and coming back again since shortly after nominations opened and I just realized Dreamwidth allows comments without an account so I don't necessarily have to figure out an entire user interface, so here I am asking for help less than a day before the deadline, like a chump.