Oh, clearly. Now I want to come up with more examples -- but I don't think anyone will top "galaxy-spanning newsgroups."
I nominate Cryptonomicon as the distilled essence of siliconpunk. Apart from the actual plot points (encrypted data storage will save the world, re-inventing the digital computer, etc.), I submit, in evidence, a main character surnamed "Root" just so that their email can come from root@[domain] and cause the recipient of said email to think highly of the sender. (Instead of mocking them for sending mail while logged in as root? Whatevs.)