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.
If you're interested in online marketing, setup email software and create a lead magnet that you can use in your sales funnel. Then, build up that list. It's often said that you can expect to earn about $1 per subscriber per month. If you have a list of 10,000 subscribers, that means you can earn roughly around $10,000 per month. You will need to deliver value and not pitch them on every email, but it is a very achievable goal in a short period.