You are seeing positive stuff online, because Wealthy Affiliate is the industry leader and has been for some time. There are over 50,000 positive reviews online last time I checked, by independent bloggers and authorities within the affiliate marketing world. There is a reason that they have been in business since 2005 and continue to grow, and evolve their business for their customers. A truly caring company.
Individual sellers and companies offering products or services have to deal with their consumers and ensure they are satisfied with what they have purchased. Thanks to the affiliate marketing structure, you’ll never have to be concerned with customer support or customer satisfaction. The entire job of the affiliate marketer is to link the seller with the consumer. The seller deals with any consumer complaints after you receive your commission from the sale.
Cost per action/sale methods require that referred visitors do more than visit the advertiser's website before the affiliate receives a commission. The advertiser must convert that visitor first. It is in the best interest of the affiliate to send the most closely targeted traffic to the advertiser as possible to increase the chance of a conversion. The risk and loss are shared between the affiliate and the advertiser.
I would also like to see a forum built into the platform. Wealthy Affiliate has a unique way of building a community and I understand why they shy away from a standard forum type of format. Instead, they want to promote live chat sessions, blog posts, private messaging, and public questions where people can comment below. This type of setup is pretty cool at times, but I also do enjoy forums where I can just browse by topic.