It is my feeling that teachers often like their practice to be perfection. When you capture lessons often things are not perfect. Sharing this can be daunting if you expect perfection every-time. Always what I share on my website is raw footage and often I will have to deal with mis-behaviour or I will lose my thought and the video will not be an illustration of good practice or communication.
If I was to go edit every video and turn it into something that shows me in good light I would be spending too many hours to make the practice sustainable. I prefer to just post video and not worry about peoples judgement.
Another observation is that while I am videoing I find student behaviour improves. I think students are aware when a camera is on and they are in full view and their behaviour is rewindable. There has been times this year where a class has been difficult to engage so I have started videoing and the students have settled down because of this.