I’ve noticed a trend towards grammar snobbery on Facebook the past few years. To those with bad grammar I say, be glad! There is no authority of the English language, “rules” are made up as we go along.
“In the introduction to the 2003 edition of The King’s English, Matthew Parris reminds us that, “There is no authority. English is not a managed language. Nobody is in charge.” Over time, English speakers themselves become the authority. Some accepted conventions sound very natural, like saying “I’m good” instead of “I’m well.” Through their ubiquity, they’ve become an accepted part of the language.”