The psychology behind going viral

All of the items listed appear to be things a person might believe/feel they will achieve, once having done a certain action.

In other words, the article tries to frame people's actions as uniquely motivated by rational thought, ignoring instinctive reasons, such as imitating something you saw that made you feel good about yourself, or made you laugh, and now you want that feeling again. So you do it yourself, if possible. Or have other people watch you do it. Etc...

This bland, incomplete article is a ruse to capture email addresses.

But why would anyone give an email address in order to unlock the missing sections of the article, when those that appear are so bland?

A: Because they don't know much about viral marketing and they want to learn more. They fit the profile this company wants to harvest. Bingo.