Because the author of this old snippet missed the $2 for $chan > kick $2 $3- (Requested by $nick $+ )To make matters worse, the overall code of this snippet is redundant. For one thing, he could have made this:> mode $2 +b $address($3,2)
kick $3- (Requested by $nick $+ )
to

ban -k $2-3 3 $4-

But I suppose he didn't know about the ban command then.