In any case, who cares? I could use a random number generator and they'd still read just fine. Or use descriptive phrases like "theoneinwhichCaraturnsoffthelights.png"
Or do like Narbonic used to do, and have the name of each individual strip a random string of two or three words, that when strung together in order of publication, became an additional text story to go along with the comic.
I do know what I'm doing here, y'know. I've only been doing it for 15 years.