Set operations are useful for combining (or separating) groups of things you are interested (or not interested) in operating upon.
Consider use-case: What friends of mine are online now? (set-intersection of lwho and your private list of friends)
union of (a b c d) (c e f g) -> (a b c d e f g)
intersection of (a b c d) (c e f g) -> (c)
Often you'll see mushcode like setunion(%va,) or similar. What this is doing is saying "perform a simple (lexicographical) sort on the elements of %va, remove any duplicates, and return it."
I've met plenty of coders who are kind of blocks of wood, so I don't think it's a red flag in and of itself. I still personally wouldn't work with him, but I don't accept that kind of help from people I don't know even if they seem likeable. They can play and I can get to know them and if things work out we can do something together.
Personally, I code in, and recommend, Rhost. All my prior games have used it, and I moved from MUX to that for various security and feature reasons. Not that MUX is bad, mind you!
After a lot of my recommendations and feature requests were integrated into the codebase, and then some, I doubt I'd ever recommend anything else to anyone. And I mean that from a coder's standpoint. When you can @cluster objects and use them as a single object, you change the game on data warehousing. Currently examining this approach for my new bulletin board system I'm writing.
As for game-running, yeah, it takes a lot of skillsets. Most people (none?) can be good at everything AND have the time to run a game, so it is awesome that you have started a small team of people to help with the vision. I too can say that communication and transparency of theme is probably the best starting advice. Always be willing to rewrite and tweak your info files as your players ask clarification questions. On my game, I plan/want to have Q&A sessions up front and solicit feedback as we get started.
Sent you a chat to help you get your tech issues sorted out.
"UncategorizedPages" is the page Special:UncategorizedPages, and the category is created by DPL as a way to list matched pages with no category.
I believe all "Special:" pages are created on the fly, and therefore trying "notlinksfrom" and "notlinksto" aren't working.
I can also make sure all help pages not intended to be listed have a special category ([[Category:Nohelpindex]], perhaps), but all coders are lazy and work very hard to stay that way.
@Thenomain - it's unlikely I'll care about this extremely deeply until I'm back from vacation, but I wanted to get the question out there. In any case, I'm grateful for whatever information I can get. I hate not knowing all the things, especially surrounding this stuff.