Other people don't seem to have this problem. If I telnet in to i.imgur.com it disconnects me even for very simple requests.
bash-4.0$ host i.imgur.com i.imgur.com is an alias for wpc.4220.edgecastcdn.net. wpc.4220.edgecastcdn.net is an alias for gs1.wpc.edgecastcdn.net. gs1.wpc.edgecastcdn.net has address 18.104.22.168 bash-4.0$ telnet i.imgur.com 80 Trying 22.214.171.124... Connected to i.imgur.com. Escape character is '^]'. GET / HTTP/1.0 Host: i.imgur.com Connection closed by foreign host. bash-4.0$