I think posting is an underrated feature for SEO, I've seen results right away. And while fresh/new is important, the posts stop showing after a week, so repeating the same content every week is a proven tactic. For my accounts trying to do a lot on GMB, we do 7 weekly posts and rotate, and it works in most cases. YMMV, vertical/competition of course being relative.
This is an interesting discussion. Would love to hear the opinions of the experts. I had seen in some mediums that GMB post has only a slight effect on ranking. Like, it is not that importnat. Would love to hear though if anyone has done any A/B testing regarding this.
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