Well, to be honest, there is a lot of COMPLETED threads where there's nothing TO say except "awesome." I try to throw in specific comments about what I like or don't personally like (paint job, wheels) and if there's something that could use improvement, I then offer a critique. I expect the same in my threads.
I do agree that proper punctuation and capitals at the beginning of sentences really does make it a lot easier for me to read; but I also understand that there's lots of AFers who don't speak English as a first language, so I keep my mouth shut on such things. They're doing the best they can.