1) edit your sitebot so it makes this then ioA is sitecommands made to be used from within server. That some nice sitebotscripters made this possible to be used via irc is a bonus for lazy people
2) Since ioA verifies that its a valid user that requests this is not possible. irc nickname is 90% not the same as username on server. I could do so it guesses but how fun is that so no no no no