since cloudflare seems to be only partially enabled now, you could try
overriding your DNS lookups to skip it entirely …
assuming you have the DNSCache service enabled:
> echo 104.161.43.26 static1.e621.net >> %windir%\System32\drivers\etc\hosts > ipconfig /flushdns
and restart your browser
once the problem is resolved (e.g. after few weeks), go back and remove the entry from your hosts file.
that IP is what I get right now if I run
> nslookup static1.e621.net 1.1.1.1
so i don't think there's anything sneaky about using it
Updated