[kergonath]

I know how to evaluate the quality of the discussions and contributions from my experience.

Also, we can discuss the quality of Internet communities, but I would tend to trust one of these quite a bit more than an advert, even targeted, which was where we were coming from.

As real life examples, I have got advice on stuff to buy from photography websites, modelling (railway and wargames) Facebook groups and blogs without any trouble, and I know where to find it when I need it. I know when to take a photography buff raving about a camera with a grain of salt ("but it has a better score with DXOMARK"), I have about zero confidence in adverts on the web.