Classic reviews contain one-liners like, "This toy would be a lot more realistic with about 350 people standing in line for an average of an hour." And, "I bet al-Qaeda is training the next generation with this very product. I am saddened to learn that Playmobile hates America."
I think it's interesting that even the lowly user review has become a source of comedy writing.
Of course, it's hard to beat the Best of Craigslist.