for all I know you made that site
Doesn't matter who made the site. Many parts about the site itself can easily make it unbelievable.
1) Never even heard of the source website, ever. To me it looks like people desperately looking up for every single little 'good' reason to abuse a drug, and probably attracts people who say 'you never tried it' as a response to any bad parts about it.
2) It appears to be in a 'submissions' section, meaning any person can just toss up an article on there. Seeing the nature of the article and the website, it's obvious it would get approved whether or not it's true.
3) It's an article.
4) It's in an archive, meaning there could either be a newer version, or it could've been proven wrong.
I see what you're saying, but "happy" isn't the right word. It can be used as a painkiller, and a way to relax so you have less stress.
It doesn't matter how stressed you feel when you're impairing yourself and can't fix what's causing the stress in the first place.
As a painkiller:
People taking it for medical purposes is fine.