There have been posts every day for the last 5, just some of them were moderated so you didn’t see them right away. There’s also been many spam posts in the last week, and you wouldn’t have seen those either.
Or they’re working extra. or going to summer school. Or taking the summer off from writing. Or writing but not releasing anything. Or…well, anything, really. But it seems (very generally speaking) summer is a season for a general change in schedules.