I didn't take what he said as a demand but I can see from your point of view where that came from looking back, and you're entirely right they need to be alot clearer, I thought they wanted us to code an on the fly AI bot, and my first reaction was "Geez, I've just got back from the gym the last thing I want to do is create life...".

One slight change to your code would be to remove the IF statement and prevent the event from triggering with the ! prefix, course it's not me being picky etc.

Code:
On !*:Join:#irc_help: {
   notice $nick Welcome to $chan $+ , I'm a help bot (or whatever you want it to say.)
}


Might be an idea to make sure they're an operator on the channel too.

Code:
On @*:Join:#irc_help: {
   notice $nick Welcome to $chan $+ , I'm a help bot (or whatever you want it to say.)
}


-Andy