I don't think anyone has mentioned the context of the Hacker Purity Test. Back in the 80s, the "Purity Test" was a well-known thing on Usenet, a long list of sexual activities, drugs, and so forth. By checking off which things you had done, you could get your purity score. (This test made for a lot of interesting discussions with friends.) The Hacker Purity Test is a humorous parody of the original Purity Test. Its humor comes from replacing wild sex acts with super-nerdy activities, while keeping the form and style of the original test.
"It is an awful thing to say but it may be that she is called the village belle* because she has the most rings." (p2)
p4, just right of a taxi ad, is an ad for Stanford?
(also, either a chicken or a steak dinner may be had for $1, but a hat will set you back $5)
EDIT: * on the topic of texas belles (krasivyje i smelyje?), a very belated idea for songs that might be sung should the RF support Texas' secession from the US: "Jolene lish raz, Jolene lish raz"