Check out the wiki's change log, and you'll be able to see exactly what activity has been happening here and how often.

There are a number of editors who add/update content here. This wiki also has a member of Fandom's content team assigned to it (Ferthi), who helps add content too.

Was there any content in particular that you believe is outdated?

After further investigation, it just looks like information is kind of all over the place and some areas have different information than others. I was debating on putting in effort to help fix this up, but it looks like a much bigger job than I was prepared for.

Do you have any suggestions regarding where to focus improvements?

Everything is just kind of all over the place and it needs to be cleaned up. I run the trivia game on ST Central discord and am an admin there and they were requesting some kind of lore page with stories of NPCs n such, which is stuff that I draw many of my trivia questions from. After looking around here, I thought maybe I could help out in getting this wiki more streamlined, but I dont know if I can now. Basically, there are instances of the same info found in multiple places and in some places its out of date, while in others it's more up to date. I think that there has been a lot of work put in here and some of it looks awesome! I am still toying with the idea of doing a lore page but not sure I have the tech skills to make a whole page lol.

Fandom has a wide variety of editors of varying skills, so I wouldn't worry too much about your knowledge of wikitext and formatting at first. Even if you were to simply place a bunch of official lore into a wiki article that isn't documented on the wiki yet, I'm sure that new info would be appreciated by this wiki's users. Chances are, someone will probably visit the page after you to format it in a way which works as a wiki article. 🙂