It's not worth it. You'll have other, more valuable ideas. Let it go.
Odds are the company won't understand this, or that only you could make this idea work (in a sense ideas choose people, not the other way around), and the patent may end up being useless to them. It's ok. Let it go.
I liked the idea of increasing the amount of time a spammer expends over their email.
I didn't like the idea of having to manually forward the email, manually remove personal information from the body of the email, and sucking the recipient into watching the conversation unfold live. Because it increases the amount of time a recipient expends over a spam email.
HN seems to also treat connections from Tor differently. If I visit HN from Tor and click on "login" HN pretends it takes forever to establish a connection. But if I first click on an existing HN link and then login, then pages load ok. HN could do better to protect the privacy of its users.
I'd pay %20 for a tool that will let others pay for what they say they want before I go build it for them, to prove that they actually want it instead of just talk.