As someone that is the recipient of these requests (guest posts on our website), why do you want to do this?
I ask because there’s no way that a guest poster knows our market, our customers, or how to add value to our market. There’s also no way that they know the language of our market (terminology).
A guest poster will alienate customers by not having market knowledge and using obviously misdirected terms.
Why do you think it works? Does it give you some Cred? Do you take the time to understand the product and market to deliver a spot on post?