I'm getting a feeling those pics were just proof (as Q said) so that we know, even though we cant see, that stuff is happening. Then he ended not to be discussed further. So just proof on those, not to be deciphered.. (guessing but I think obvious)
I believe the same
I don't think its about the posts being harder to find (search query & access to archives still possible)
Maybe more personal to his team? as opposed to the more "public" greatawakening
not so much to make more difficult to find, can still search or look in archives. more likely for the message to team, for immediate interaction, as opposed to the more public greatawakening
not is containing