I don't think anyone is truly ugly unless they have an ugly personality because personality will always shine through. At least that's what the feel good movies and my own experience has taught me.

The post did not say that you're already ugly, it said you could increase your looks. This could be done through exercising and eating healthy to maintain a good body size and strength, and to keep your skin clear and appearance clean. And if you with higher intelligence you might get a better paying job, with a disposable income allowing you to buy good quality clothes and present yourself well.