I think that's the key difference. For strategy folks, it makes sense to demonstrate this kind of work through that kind of channel. But LinkedIn posts aren't relevant for non-networking roles.
The parent poster has “25 years of exp, director of engineering managerial/technical type”. He should be selling himself as a strategy person. In today’s market you have to be networking regardless especially for remote work. Even before I started doing the BS influencer mess, two of my last three jobs were based on internal recruiters reaching out to me.
I think that's the key difference. For strategy folks, it makes sense to demonstrate this kind of work through that kind of channel. But LinkedIn posts aren't relevant for non-networking roles.