Dunno, I guess it looked like one of those "there I fixed that for you" replies? I had a feeling that if you wanted to make a point of them being obviously fake you would have made your own joke, like "buffoon on balloons" or "scallywag on airbags" or "It on a tit kit", instead of singling out someone else's reply, and "correcting" a word in it?
Anyway, I wasn't being serious about it either.
your mother about what you did] 
