You don’t have to actually poison the spammers – its illegal and would land you in jail for 10-15 years apart from getting rid of a spammer. 😆
But still how it works?
Ok, it works fairly simple. When you post the generated link on your website, it will redirect email harvesting bots to trap sites that will feed it with an almost infinite loop of dynamically generated fake email addresses, mostly on known spammer owned domains! Thus emails generated or caught by spammers hold no value and they would simply be collecting a bunch of garbage email ids from each website which installs this code.
I would recommend you to paste it on your website. It seems a good option though still there are other better options to prevent email spam such as using contact forms or displaying your email ids in form of images.