So... the usual has happened and I've already got a wontfix this month. OTF PS3 FTP plugin "only supports passive mode, not active mode", will accept 500MB of uploaded data then close the port on passive mode. Active mode "is not supported" amd "doesn't accept connections" and passive mode "cannot possibly fail because it's better" and "must have been corrupted before being installed on my PS3."

Guess which mode works flawlessly?