On item 13: I think the comment is about the social projects "completed" list (that is the list on the planet detail screen). This has been a problem for as long as I can remember, and it was reported a long time ago when the list first appeared, long before the first Beta build.
On item 17: I am still playing around with this trying to find something definitive to demonstrate the problem. With my current game I only have one planet with a high population (60.5

but it looks like it has run up against the class population limit (it is a class 31). I have not yet researched Terraforming so I can't boost its class yet. However, here is my current theory on what is happening and what I am looking for: The growth of such a large planet, even at 1%, will be huge (605M people). I am not sure what the morale curve is like, but I suspect it is not up to handling the growth of a huge population. So I would expect my 60.5B at 53% to grow by 4% (up 2.4 B to 62.9

and the morale to plummit. Eventually I expect the morale to drop from above 40% to below 30% in one turn. This is just a theory at this point that seems to bear out what I have been seeing in past games, so I have to run my tests while observing the results to verify or disprove it. This will take some time. Of course, if SD finds my theory worth checking into, so much the better. I have been wrong before and I am not afraid of stating theories like this and having them being shown as wrong. I even sometimes find out I am wrong myself, in which case I say so. But I will share theories from time to time just to try to get help in solving a problem.
Cheers,