We are getting OT and not to say I am perfect by any means, but using proper grammar does provide better credibility. It also helps the readers understand the ideas you are trying to convey. If you don't think it is worth your time to proof and review your post, then what should others think about its substance?

Actually, I do find it somewhat commendable that others take the time to point out what the grammar issues are (especially when the issue is repeated over and over). Heck, we might learn a thing or two in addition to FlyerTalk fare.