It is used consistently in this lexicon. A related practice borrows syntax from preferred programming languages to express ideas in a natural-language text. Yeah, I tried one out too. I guess they figured the price premium for true frame-based semantic analysis was too high. Unfortunately, it's also the only workable approach.
Hackers also mix letters and numbers more freely than in mainstream usage.
In particular, it is good hackish style to write a digit sequence where you intend the reader to understand the text string that names that number in English. It should also be noted that hackers exhibit much less reluctance to use multiply nested parentheses than is normal in English. This has both good and bad effects. Many introverted hackers who are next to inarticulate in person communicate with considerable fluency over the net, perhaps precisely because they can forget on an unconscious level that they are dealing with people and thus don't feel stressed and anxious as they would face to face. Though it is considered gauche to publicly criticize posters for poor spelling or grammar, the network places a premium on literacy and clarity of expression.