I am far from being a doctrinaire stickler opposing all neologisms; Twitter alerts one to the merit of abbreviations like "2" for "too", "4" for "for" etc. But many new usages fail to gain my assent. One of these is the abbreviation "to" for "too", as in: "It is to bad she couldn't get to the party".
Can anyone trace the history of this usage? I have only noticed it quite recently. Is it a passing fad?