>>528789579
There is a Magma up right now that got posted some threads ago. A lot of anons participated and more likely will as time goes on, so it looks like the mandatory login wasn't as much as a problem as people said, even if it's quite the retarded decision on Magma's part. I'd be up for doing a weekly or bi weekly Magma if anons think it's a good idea.

Speaking of that, I will repost the link to it.
https://magma.com/d/zwvExP8tCq
https://magma.com/d/zwvExP8tCq
https://magma.com/d/zwvExP8tCq
You can register with a throwaway email: https://temp-mail.org
If you need to hide someone else's layer simply click the "hide layer for me only" button in the layers tab
If one canvas is filled up simply make a new one by clicking the + button