Quote:
If I dont use the -a and -s switches (having specific a channel where # is) it doesnt work.


That's because if the first parameter after the /echo command
is a number, it's seen as specifying a color.

So if there are four users on #mIRC and you do this ...
//echo $nick(#mIRC,0) users are on #mIRC right now!!
.. it will turn out like this ..
users are on #mIRC right now!!