no.., mirc has certain stuff it keeps in the titlebar even after using the /titlebar command..
//echo -a $titlebar = tidy_trax
but whats actually the titlebar = mIRC tidy_trax - [#somechannel [8] [+nt] topic... ]
after using //titlebar $anick = mIRC phoenix - [#somechannel [8] [+nt] topic... ]