If you actually read even a little of the article, you will notice that there is no reference to "making one's faith more valid", but rather more practical values like self-discipline, self-control, patience etc.
1 visit to Orphanage will give lesson much more effective than this ancient spectacle. I know what I'm talking about.
I wonder what I read. Haha.
At the end of Ramadan, Muslims are encouraged to donate to charity. It becomes much easier after you've felt a bit of what it's like to be poor for a month.
As for your other comment, there's nothing stopping a Muslim from donating to charity during the rest of the year. Also, there's another important act of giving called zakat which depends on your current assets - usually 2.5% every year.
Of course, fundamentalists -- as apparent from the name -- read things very literally and "speak" or "hear" directly from God.
What is prayer if not speaking directly to a deity?