Well, from what I recall from biomedical ethics, the majority of people who attempt suicide and fail do not attempt suicide again. This would suggest that for most people suicide is merely a phase they can pass through.

Regardless, these questions are asked all of the time. A news article about a new feature on a social media site isn't an appropriate forum for discussing such a ridiculously complex topic as the ethics of suicide. The only way your comment could be less appropriate is if you were advocating for a discussion on the ethics of murder on an article about a murder suicide.

Edit: I suggest checking out the article on suicide on the Stanford Encyclopedia of Philosophy. The Encyclopedia as a whole is a great resource, and this article is no different:

http://plato.stanford.edu/entries/suicide/