In my opinion, the Upper Case letter should be present in the writing, when starting a new line which will make your content presentable. Now you might ask why the content should be presentable, the thing is people tend to read more when the content is interesting and if presented well.
Thank you. I do see your point. I've already started using the shift key again. And, I reckon I will update my original posts and add some uppercase letters.
That's great.