yes. I understand what you mean. It annoys me, too. I've asked the developers to change the code on the site. What it's doing is automatically de-capitalizing any letter that does not come after punctuation. This prevents people from writing in all caps. It also, unfortunately, prevents correct grammar. There will be a new feature on the site so that you can either enable or disable the capitalization settings in "your account" profile.
Thanks for your suggestion. And the new setting should be in action in a couple of weeks.