As a newcomer to both Rpi3 and the community itself, I look at this question with two different feelings.
The education-hungry side of myself loves a list of resources because I want to also learn and discover new resources. Additionally, I like neat and compact repositories. These are great things to find.
The other side of myself also understands these become canonical in nature, open off topic debates about why one is better or worse because of XYZ, and need constant update as the resources change.
I think keeping how the SE Q&A system works in mind is a determining factor here. What is the impact in allowing the question after the answer changes and are 'we' as a community going to constantly and consistently update the answer - or - do we forget duplicate questions in this specific arena (no, I wouldn't think so).
I'd feel better if it did close. Disappointing as it may be to many, the answers to the question are opinion based and would be very difficult work with.
I'd propose handling this type of question like I try and do on Arqade when someone asks about pirated software, and that is to direct them simply to the official source to discover an endorsed list of resources, and letting that question stand, but closing all others a duplicates. It removes the answer as an opinion, and establishes the questions in the system to be searchable at any time.
That's just my opinion though.