This works both ways. I've had some experience with intelligent people trying their best to convert me to homeopathy and to astrology - in vain - and in both cases there's a family of practices and a hierarchy. The top of the hierarchy has absolute disdain for those at the bottom. Newspapers are at the bottom. Any serious astrologist will regard the stuff in newspapers as bollocks. At the same time the serious astrologist will easily dismiss people who associate newspaper astrology with real astrology because clearly these are people who don't know what they're talking about.
The 'serious' guys have their own strict procedures that gives it all a more scientific feel. It feels so much better if you start with actual calculations from the ephemerides. I've known a physicist who strongly believed in astrology.
The serious homeopathy of course works with absurd dilutions prepared following strict procedures.
The homeopaths attract many well educated medical practitioners who use complex anamnesis/diagnostics routines close to the procedures used in allopathy. There's a lot of mouth to mouth reputation building causing people to distinguish between the crackpots and the serious homeopaths. Again, and even more than with astrology, this is not just a playground for the intellectually challenged..
There's one thing to take away from all this, and that's that once you allow yourself to be submersed in pseudosciences, it'll turn out to be a lot more convincing than you expected. I wouldn't trust too many people to be up to it. A lot less than the 42% in the article (100% - 58% of the 18-24 year old in this case). More like less than 10%.
I've done it a few times. I'm really tough :)