I don't want to comment on Dave's capability as a vlogger or anything of the sort, seems people got sore about this topic. All I can say is that I felt that Dave's "consistency" has dropped, that's all. In reality if you factor days in from the start of Daves blog to today, he averages well below 3 a week. 3 a week is what I got used to and eventually noticed the slow down so I began to wonder.
And wonder is all I did for a few months. I follow others on youtube, and they keep it consistent, since it's what they do. One or two a week, and I'm good to go, it's when the regularity shifts that I seem to notice.
None of this is intended to "comment" on Dave's abilities, capabilities, drive or laziness. Keep it up Dave, fantastic work.