Not really. I played around a bit with my Expert cartridge and once coded a simple bat-and-ball game in assembly, but I didn't crack games, make demos/SID tunes, &c. Why do you ask?
But Andrew, what's up with those tartan pants! They could do some real damage if you wear them in public!
And in case you haven't heard, Joe Strummer has died but Shane MacGowan is still touring.
Were you ever active on the old C64 scene?