Not arguing as I always do this and won't do it here, but just a couple of observations I guess.
Cineversity, both the old and new site, is official. Go to the old Cineversity site and look down the bottom right side and you'll see in tiny letters 'Copyright Maxon'. Go to the new Cineversity site too and down the bottom of the page there's a 'Copyright Maxon Computer'. Both pages are owned by Maxon.
The old Cineversity site has a very useful forum but it's there mainly for assistance, help, and queries in learning the software. I wish I had more time to use it than I do, as you can ask pretty much any question there and you will get a useful answer. Thank you Dr Sassi for your help there.
Core4D was originally C4DCafe and had a lovely laid back feel when run by Nigel / 3DKiwi. Some Maxon folk used to post on it then, the same ones and maybe a few additional Maxon folk continue to post on it now that it's Core4D - and I still like Core4D, otherwise I wouldn't be here.
Blender is great, they do nice updates, they have a big community, Ton Roosendaal is a lovely guy and I like the Blender Today channel. There are probably heaps of fun Blender Youtube channels, in fact. But I don't quite know how you view C4D as having 'no resources' online as there are many, many, many C4D based tutorial channels, and heaps of tutorials old and new to pick from. In fact I feel a bit sad sometimes as I know I'll never be able to properly sit down and make my way through the volume of cool C4D tutorials that are out there. I won't make a list of them as there are too many to list, but no-one should ever be stuck for C4D tutorials to look at.
Probably at some point if I'm bored I'll make a new thread with a semi comprehensive listing of the C4D tutorial channels I find useful. It would take a while as there are a lot.
I simply feel that with this comment and the next one comparing it to Blender, people who want to use C4D will do so, and people who want to do things with Blender will do that. If you're not going to recommend Blender to new users it's probably fine. No one ever sat next to me and urged me to try C4D, I really just decided to do it myself. And you note elsewhere that Blender is 'really janky'. I'm sick of janky software and am happy paying the sub for C4D each year to get something a bit less janky than that. Again, Blender is doing fine and the people who happily jump into Blender will also do fine.
We're together here. There are also pretty solid communities I see on Reddit, Twitter and elsewhere. You're right in that there's not a giant all-encompassing C4D forum with the amount of traffic and posts as the main Blender forum gets, but I wonder if this is also partially because the C4D users are too busy working on their stuff to walk through and start endless new forum posts.
I could post more but while I think there are arguments to be made for reorganising how and where some of the C4D tutorials are listed or archived (and Maxon just started doing that anyway with the new Cineversity site) I think the amount of tutorial info out there is very substantial. Side note - I bought the very detailed Udemy C4D courses (made by Lionel from the Maxon training team) and even though the UI has changed, it's not a big deal. A cloner is still a cloner. The Bevel tool still bevels. The shortcuts are all largely the same. You can search with the commander to find a tool if it's moved somewhere. Generally it's like learning how to cook and someone tells you the flour has been moved from cupboard A to cupboard B, they show you where it used to be, and also where it is now. You just smile and get on with it and don't stress about the ten seconds it will take (just once) to learn where something new has been moved to. And Lionel's courses are so great I intend to go through them carefully.
The TutorialCells guy on Youtube is also midway through a veeeerrrryy comprehensive C4D tutorial series and he uses the new UI exclusively. Worth a look if anyone is keen to learn with a free resource.