Moving your community to another platform which has a better history of respecting their users isn't metaphorically similar to burning your house down. Its more like immigrating to Canada because Trump won.
Literally, in that Google Groups conversation they said they wanted to delete everything and make it private so no one could ever use it again. That's insane.
Then when posts are no longer allowed, leave a read only copy up for some time, then leave nothing but the links to other communities.
It stops being a community it the non-experts are separated from the experts by inaction of the experts.
If someone really likes Reddit that much, let make another go language sub.
A) the community does not belong to the golang team, the subreddit originally existed independently of the golang team. B) The community is not a piece of furniture to be moved at will; they have to choose to move.
If they do proceed with this (say they take a vote), the best they can hope for is fragmenting the community between Reddit and Voat or whatever.