Geico isn't playing "fair" as these pins are nothing but pure promo, linking directly to a "Get a quote" web page. And pinners are sharing these ... giving their own followers nothing satisfying, only some free advertising for Geico.
Heck, Geico could have at least shared a recipe, a travel tip or some facts about Pandas on the link-through page.
Note to brands: if you are going to engage on social media, be honest in your actions and follow the "social" protocols. You can promote and advertise, but do it with taste and openly. And make your self-serving posts or pins only about 20% of your activity.