I saw a few instances had large bills from their CDNs because some spammers uploaded many attachments. I don’t think this is from the current wave of spam about the Japanese discord server though

They use AI generated voice acting

https://www.gamespot.com/articles/the-finals-dev-defends-ai-voices-says-its-not-trying-to-replace-humans/1100-6518802/

You could probably trust that an instance you’re paying for will be more stable/less likely to randomly shut down.

Here’s a pretty comprehensive list