Has Tom Wilson tried "TellAFuckingJoke.com?" Seriously, there is no joke in that panel. I mean, Ziggy was always full of bad jokes, but at least they were attempts. This is just...I don't even know what to categorize that as. Man. Pure awful.
I'd say as long as it wasn't a porn site, I'd feel ok making a reference to it. Cybersquatters seem to have every possible domain name taken, so it's hard to pull a 555-1234 when it comes it a domain name.
I've been reading comics for the past 30 years and have pretty much liked/loved every DC "big event", not counting that "New Blood" fiasco. Final Crisis sure felt like it should have been just nail-biting good fun reading.