Sure, Nigerian or anyone from restricted countries who resides in the United State of America or any eligible region can fully registered in Wealthy Affiliate and in that case if they go back to their country, in your case Nigeria after some months, then sure they can access everything from that restricted country as well because once someone registered in WA, they can log in and work from any country, even from the restricted ones.
SurveyMonkey is one of the most popular free online survey tools. Surveys are a good way to collect consumer information, engage customers, uncover trends and secure tangible insights on your business. SurveyMonkey’s software is incredibly simple. In just a few minutes, you can design, create and publish your own business survey. Additionally, you’ll be able to analyze the results in the backend.
About earnings, it depends upon a time you can manage to build your website by learning the Wealthy Affiliate lessons. For example, if you can write 4-5 contents/articles per week, then you can get a good amount of traffic within a month and after 2-3 months you can apply with affiliate programs like Amazon, eBay or apply with advertisement networks like Google AdSense and start to make money. So, it depends upon how much time you can manage. More time means more money.
BeRush is the affiliate program for SEMRush, a SaaS company that specializes in SEO and competitive analysis tools for digital marketers. Their affiliate program offers a 40% recurring commission over the lifetime of a referral's subscription, which translates to up to $160 per month per referral. Plus, they offer a very generous 10-year cookie life.