I think you are right, they are under pressure to bury posts my saying they are solved when they are clearly not.
I am a member of two other forums that are based on the same platform, they are just set to close if there is a single post from anyone.
I had asked a question on one of them and it got a few replies saying something could not be done. Then about six weeks later there was one guy who posted a potential way to do what I was asking. That single reply led to 86 further replies and they solved it. Now people refer to that thread and it shows the evolution of how the solution was developed.