I'm not sure I can understand what the above is talking about.
The difference between the two is that as a director of a limited company, you are employed by that company and you take PAYE salary from that company. But you are also a shareholder of that company, so some of the profit of the company can be channeled back to you are dividends.
Why does that change the price of fish you ask? Well it all depends on how much income you have from the website. Unless you are into higher rate taxpaying, running a ltdco isn't likely to help you financially. If you have significant income, a non-working partner/spouse can work in the business doing admin work and can certainly be a shareholder, such that some of the income can be channeled into his/her earnings. By paying yourself in dividends, you effectively just pay the 20% small business corporation tax rate, provided you can keep your overall earnings below the threshold for higher rate tax.
However running a ltdco comes with some overhead costs - an accountant for starters if you know nothing about how to structure these things.
As a rough measure, unless your income from the webite is greatere than £50k pa it is unlikely to be beneficial to run it as a ltdco.
There are also limited liabilitily advantages of course - in the event that the business goes belly-up, your own personal wealth and assets is not put at risk.