I'm not much a love guy, but I think it's clearly one of those topics that everyone feels they're an expert on, not to speak about the people in this thread. It's just a trend I've found on the internet. 

Personally, I think that if someone really wants to try a relationship with someone out of physical reach, they should go for it. It may likely fail, but one shouldn't not engage in relationships because they think they won't last. If it fails, you've learned something. If it hasn't, then you've found something. Personally, I believe it's more likely to eventually fail than not, but everyone's lives and circumstances are different. That's why I don't believe in love gurus or that anyone is significantly more qualified to speak about it than anyone else (most of the time). Reading all of the conflicting advice and anecdotes that don't always give a definitive answer surrounding any given relationship topic, I'm more against dating advice than I am LDRs.