He just wanted to make a nice story then everyone barged in his topics shouting at him for it.
I would get angry to, maybe not to the level of using caps lock (whoa whoa man not that angry) but yeah, I think he had perfect reason and to be quite honest I think you should have just said something along the lines of 'please fix your grammar, it makes it easier to read what you're saying and thus may make your story slightly better, the story could use some work though' rather than simply saying 'wowe this is bulstuff'.
Seriously guys, grow up a bit and help people that don't know how to behave with etiquette on the internet rather than simply shouting at them till they go away.