This has been bothering me, too. It's what I meant when I referred to the new genre of "clickwriting", and that you'd brought us some examples.

Clickwriting is a 100% commercial tactic which dangles an incomplete set of information in front of you (like an infomercial teaser), crafted to provide the maximum motivation to click through to the source web page...where, of course, you'll have cookies dropped and your visit registered in a dozen ad networks, and you'll see a narrow column of text flanked by a dozen static ads and very likely an autorunning commercial video. Kind of a "metadvertising".

In other words, every time you copy that headline and reproduce the teaser text with its link to an ad-wall, you're in effect posting an ad on the HabitableZone. Just because the advertising is at the other end of a link doesn't dilute the essentially commercial nature of the post--their purpose is to haul in people to view the ads.

bowser's also right that you're neglecting to treat the quoted text as visibly quoted (using the <blockquote> tag), and not identifying the source. Although we know by now that you didn't write the post, there's nothing in the post to actually say so.

I think what would help make me comfortable with this kind of post is if you'd increase your content above zero percent. In other words, instead of just reproducing their teaser, write up what you found when you clicked the link, and what you think about it, and why we should care and want to take another dip in the commercial cesspool.

Be our guide, not their shill.