Writing a comment(or post) I just type away and read what I wrote. I edit it a few times and most of the time it ends up looking like almost normal grammar. If I take the comment to far off topic, make it to long or just disagree to much I sometimes do-not post it. I've seen blogs(specially vlogs) that just stopped existing after getting a sarcastic review from another site.
So this post is for all those comments that never got posted. :-)