Based on what I have read in comments on the web recently, I have a few points to make.
One is that civility is a lost concept to most people.
Two, some people have no sense of humor.
Three, a large proportion of respondents equate vulgarity with wit. Rather, vulgarity is the antithesis of wit. Check your Webster’s or Oxford’s, I don’t care.
Four, a number of people need to go back to school to learn how to write and spell. Grammar is also a missing quotient in many. Quotient? Check your dictionary.
It seems safe to say, many are wit-less.