I'm a habitual under-writer. I get so excited about a scene that I rush everything to get to that one scene. But I can't just write that one scene first and then go write everything else. So I miss out on a lot of opportunities for scenes and the like.
Which also leads me to editing, which I hate with a passion, but force myself to do anyways. I have found that while reading my previous draft, I'll think of new scenes or missed opportunities and I make a giant list of them all so I can go back and do them which gets me really interested in the plot/characters/situations again so I write more. Right now I'm aiming to add 70,000 to an existing project since I can cut stuff later, haha.
I like posting my work, but if I don't, or can't, do so consistently I start to feel bad.