So, pretend you are in charge of spending $410 million dollars at Reddit. What would you spend it on? From my amateur perspective I've got, 2 web devs, 1 backend engineer, 3 devops. Pay them very generously and that's $1.2 million spent. I have no idea what I would do with the rest..
I really don't know what they should do with the money other than make reddit more reliable. It was down last night. The value of reddit is the users/community. Technically, it's a modern message board/link aggregator. There are already many clones.