I write plenty of HTML by hand, for myself. I prefer to omit things like </p>, </li>, </td> and </tr>, because it takes less effort (and I hate text editor plugins that automatically add closing delimiters of any form, because they
always do the wrong thing a meaningful fraction of the time in a way that I have to think about, more than if I just type the delimiters myself, though an accurate “insert at the cursor whatever is needed to close the last thing” shortcut might be handy), and reduces visual noise.
I also normally omit quotes on attribute values if correct to do so.
I mostly do these things when working on things of my own, when I know no one else needs to worry about them. When working on things others will touch, I don’t drop quite as many closing tags, and will normally leave attribute values quoted.
