Definitely not, it has a totally different approach. It's, or better I should say.. I was a specific account --centralized if you like-- that advertise external companies services, mostly fiat ones.
The Ad-post type as I'm envisioning is a classified type, but not only, it is an opportunity for SMB and entrepreneur people to advertise their products, services and whatever other stuff here on SN. And am not saying it should be limited to the ~AGORA, indeed, when the cross posting will be released, hopefully soon, Ad's will be ideally allowed everywhere. It will be the territory owner discretion to decide if allow the Ad-post type or not in the specific territory. @Ad failed because it is not personal, it's a reflection of the old fiat mentality approach, kind of old viral marketing, a residual from the 90s. Noting to do with P2P and free market.