/timer 1 1 join #$C=mS^3$
* Timer 1 activated
* No such identifier: #$C=mS^3$
* Timer 1 halted

/timer 1 1 join #12$C=mS^2$21 (note changed to not show actual channel name for example given) actually works
* Timer 1 activated
* Timer 1 halted
and window opens. My obfuscation example works while original does not (#$C=mS^3$)