We are vibrational being and we interact with our environment all the time, which also carries it vibrational frequency. When we view/intereact with information online or in our environment then we allow the frequency of that information to affect our own vibrational frequency. Sometimes this can be benificial but also sometimes it can make us feel confused and frustrated. Specially if this information is coming from someone who is trusted by many and is a respected source.
In this case, we should always trust our own insticts. We can pay attention to how that information is making us feel. If it makes us feel less in someway and takes away our self confidence, instills fear of some kind, makes us feel angry and frustrated then dont trust that information. Doesnt matter where its coming from, whether its coming from me, or a big spiritual guru, your own friend/family or a book/blog. If the information is making you feel empowered, at peace, happy and good about yourself and is giving you strength to achive what YOU want, then that information will always be for you. Hold on to that information and keep going ahead on your spiritual journey. It might be coming from a little poster on the wall that you dont even know who put it up, but if its making you feel good, its for you.