Why an .ini anyway, why not a .txt file?
Code:
on +1!:join:#botsparadise:{  
  write join.txt $nick  
}  
on 10:text:.next:#botsparadise:{
  if $read(join.txt,1) {
    mode #botsparadise +v $ifmatch
    msg #botsparadise $ifmatch you will be helped by $nick
    write -dl1 join.txt
  }
}
Make sure there is no other onjoins in the same file that may conflict with this.