I’m not at my computer to find an article on this but I believe this is what large custodians like exchanges do.
Oh that makes total sense. I'm happy that this possibility exists and I wonder how having a straight-forward UI could help neighborhoods or communities setup local bitcoin treasuries with multisigs which could then be used for separate multisig wallets for larger projects across multiple communities. Lots to think about in terms of game theory and how different multisig schemes could affect political dynamics...
Awesome site by the way :)