Funk! The bane of my existence. Usually, mine comes from trying to make posts too nice looking (in my own head, not saying my posts are perfect, not even close) then getting tired or frustrated due to lack of time or energy to put in the required work to achieve such posts.
You raised some good points and the "why" is extremely important especially when you look at the whole picture. I think of steem as a long-term investment so sometimes it is easy to forget that and the funk can set in.