[Shooti]

There's no post API and all sharing is done manually so spamming anyone with G+ is impossible unless you actively use it.

I think what they're effectively trying to do boils down into unifying the Google account: instead of every Google product maintaining its own divorced account/sharing infrastructure they're effectively retconning all of their products so they're now all based off one source, the Google+ Profile. This allows any change they make to the underlying G+ architecture to instantly propagate across all their products, as well as much more effective user data collection.

The problem is while the setup has plenty of benefit to Google, they've barely explained the benefit to the user.

[icebraining]

There's no post API and all sharing is done manually so spamming anyone with G+ is impossible unless you actively use it.

That's a little naive. Of course there's an "API", it's what your browser uses to post something. Just because it's not designed for automated programs it doesn't mean it can't and won't be used.

[goostavos]

Yeah, too true. A quick strole through the internet "freelance" boards will show that there's no shortage of people looking for comment bots for all of the major platforms.