How to handle direct contact offers? (Unsolicited Offer)

Question

In this question a user is offering his contact:

Tracking contact form submissions for different pages with Google Analytics Tracking contact form submissions for different pages with Google Analytics

Does the answer have to be removed or edited to remove the contact?

Answer 1

That question already had upvoted answers. I took the liberty of deleting the answer altogether as it seemed to be more about self promotion. I find this unacceptable.