"you let the visual component of arguably the greatest communication shift/revolution in the 21st century be under the whim of one idiot". 800 million pictures, just gone. For example https://twitter.com/textfiles/status/523160725158903808
"t" is a Base64-encoded blob of data containing a few miscellanous bytes, as well as the URL the proxy should download (in this case, twitpic.com/show/large/...). "s" is the signature, used so we can't just abuse the proxy to download more.