I think MediaWiki's default syndication feed support is pretty useless. It's just raw diffs of the page changes, which is hard to read, it ignores all formating and just gives you wikitext, and it has tons of crap in it you don't care about if you just want to read the site. It just isn't what you want.
So, I installed Gregory Szorc's WikiFeeds extension and made some minor changes myself. It provides much nicer syndication, and it reads like a blog feed, basically, which is nice. Here are the most useful feeds for this site, although you can see how to make your own at Special:WikiFeeds if these don't suit you:
And finally, since I don't like feeds much myself, I'm going to set up a mailing list that I will send out new articles when I write them. Personally, I like getting a mail reminder so I don't have to check the site or a feed reader. I will exercise editorial control over when I think something is important enough to send out to the list, while the feeds above catch all changes.