all the people i know that are grammar heads, still need a calculator to multiply 6 x 16. If G'day and C'mon are accepted in the English language why not "would of" especially with the vast range of English speaking accents, it is getting harder to set English spelling or grammar as written in the Queens English. you only have to look at the USA and it raping of the English language. And with that now being the dominant culture you are more likely to see the Americanized version instead of the Americanised version.