This comic is about the results of forgetting to use grep when using `tail -f` (tail -f /var/log/nginx.log | grep something) on a Linux/Unix-like system. As a result, an overwhelming amount of data floods the screen.
https://files.mastodon.social/media_attachments/files/111/931/514/969/108/569/original/5436225da68f4edc.png