There is a lot of hassle with "I hate IE6"-pages. I would like to put
a script on my page, I hate it too.
1] What is the script?
No script required, create an "I hate IE" banner and put it in the
page. Why only tell IE users that you hate IE?
It's "worth" it if the outcome achives the goal (whatever that might
be) at a cost you are prepared to pay (apparently not much or you'd
have hired someone to do it).
The cost of putting an "I hate IE" banner in a page is very small, the
outcome may not be what you expect and may result in a more
significant cost.