It's a bit harder to sneak into a raster image and fix spelling errors, and it's not my creation.
Good site, this, I get heaps of laughs out of it:
icanhas.cheezburger.com/lolcats/One thing Laurie said when he gave me the button was 'lay off the spelling and grammar nazi act a bit, some people don't appreciate it' (or words to that effect). Once I got the button though I found I was simply able to sneak into people's posts (in particular topic titles) and correct them myself without anyone knowing...