Guys, belated thanks for your responses! I have to admit, I didn't check that little "notify" check mark and just thought that the thread did not generate any comments. I'm trying to catch up now.
This is fascinating stuff and I'm intrigued to see that people go as fas as cloaking to [try to] protect the first publication (i.e. authorship) rights. I mean, how else would you describe what blend27 does? And that's not a jab at you, blend27, I'm amazed you had the guts to use a technique frowned upon since Sergey and Larry attended grade schools :)
Unfortunately, I'm not finding many references to "PuSH Google+ authorship" either except for "Google is being pushy with their Google+ thing", and even in general, many of the sites I help out with are forums and therefore the whole premise of authorship won't work for this type of site, not that I can see. But I'll keep looking.
Thanks, levo for the tip on how to push-ping. I do understand the mechanics better how than when I did first posting this but the issue still remains: if you ping the hub (any open hub) with a full RSS feed, then THAT (full RSS) is what gets pushed to your subscribers, and one of those can be Google but can also be your scraper. What good is it that the full RSS is "private" (I assume, no link to it from your site?) if its content gets delivered anyway, AND, you don't even have a log of the scraper's RSS bot hitting your Web server, so you cannot 403 them the next time? What am I missing here?