Oof, I see. This makes sense since before I ran into this, I did import 120k topics. So that must have fetched a lot of images from imgur.
Thanks for pointing this out, I simply thought the client does all image requests!
I find it interesting that the server does these requests, I assume it is to cache them locally in case the original disappears? I will look for ways to spread the process out a bit, so that the 120k posts get build over a longer period of time to prevent the server from being blacklisted or rate limited. I mean for this server it’s not a problem, it’s just on integration. But once I do the import on prod I’d like to prevent this 
Continued as a new question: How to spread out import over longer timer to prevent running into rate limits of external services