Web nugget: Asterisk defiant art

Not sure if this belongs here (pls mod it away if not)
Found this:
Very funny, at least in my book, here’s an example:

I would certainly go and integrate this in my SOHO installation (easy) but just don’t feel like paying for caller ID and even worse, maintaining a whitelist of telemarketer numbers in my dialplan. Anybody have an idea if automatic dialers can be identified (zaptel-1.0.10 on X100P clone) so I can branch off in my dialplan? Man, this kinda fun would be motivation enough to get off the do-not-call-list (;->)