The people expressing their opinions above are members of this site, which also makes them affiliates as well.

That means if you arrived at this site through one of their links and you choose to purchase an upgraded membership level,
they will earn an affiliate commission as compensation for inviting you here.

If you choose to join the site, then you will also automatically be an affiliate as well,
and you'll have the ability to earn your own commissions if someone makes a purchase through your member link.

I believe that giving members the opportunity to earn commissions is a great way to motivate them to spread the word, don't you?