It looks like the method they'll be going with for legal reasons is to allow instance operators to use their own API keys. This might be a good solution if you self-host your own private instance (easy with docker on a home network, no domain name required) with low traffic, but the Reddit API change will probably kill the larger public instances with many users, as those will definitely have traffic over the API limits.
I looked him up.
They mod 726 subreddits.
I don't think he's going outside, he's screaming into a pillow 24/7 in a nest of greasy fast food bags.