The server hosting lemmynsfw.com is likely overloaded + there are issues with the picture service. Waiting for the head admin to get back home. Hopefully everything should be resolved Soon™
lemmynsfw isn't hosted on aws, no. We might have had issue with cloudflare, but it should be fixed now. Check this post for now if you have anything to report.
It feels quite snappy though, I don't think it's overloaded generally. Definitely something's not quite right though, ignoring that the image uploader seems quite flaky.
This place has a lot of potential. The question I guess is. What does lemmynsfw.com need? Once we fix this error 500 what are the biggest hurdles to becoming a growing large community.