To this I say: Hey kids, go grow your own groups using free/libre open source decentralised, distributed post-blockchain holochain-powered https://moss.social
I'm not sure I fully understand - whilst I agree there's been useful legal work, we now have such a plethora of licenses I ended up having to back what I'd call basic common sense when someone was suggesting using a highly restrictive "community" license that had ridiculous intents such as saying you can't use it in this particular industry because that industry is "bad".
The reason Free/Libre Open Source Software wins - and always will do in the long run - is because the four freedoms are super-simple and they reflect how the natural world works.
The last time I heard a comment along those lines I was attending a session by an Open Source person and up on screen they had a picture of RMS dressed as Che Guevara.
All those silly ethics, they get in the way of the real work!
Out-of-the-box you've got a responsive theme, built-in accessibility, multilingual capabilities, a security team, and the accumulation of 23 years of tried-and-tested code.
The efforts that are being put into this new product are making it as easy to use as any other CMS, which is a huge leap for Drupal.
Add into the equation things like the new AI initiative (http://dgo.to/artificial_intelligence_initiative) where you can literally configure the site through chat as founder of Drupal, Dries Buytaert, recently demonstrated asking AI to create a categorisation of wine tour events based on the top 20 wine regions (https://bit.ly/wine-tours-taxonomy) I have a feeling that, based on my 21 years of using it, I think Drupal's going to surprise quite a few people over the next year.
I don't just use it as a CMS, I leverage native commerce (http://dgo.to/commerce) and CRM (http://dgo.to/contacts) modules in order to have a fully integrated framework which, architecturally, enables me to create functionality that would be expensive if even possible using separate systems.