Have you considered they “might” have friends over that have minor c___dren with them? And to the best of my knowledge minors should not be seen on the site (I’m sure I’ll be corrected if I’m wrong). I use that as an example. They are real people with real lives other then VHTV and I can think of a number of legitimate reasons why they would go off line for personal reasons.
Plus, we all tend to miss the most obvious thing that they all share daily, that they are in a very stressful war environment. So there will be times when we have to give them some space out of respect for their personal situation.