It occurs to me that the obsession with "Friendzoning" is a manifestation of the natural resentment that men have over the fact that women hold the 'keys' to the relationship.
Assuming for a moment that we're speaking in a hetero-normative cisgendered terms here (and modify them to fit your own parameters as need be), in our society, men are expected to be the assertive ones who are supposed to 'seek' potential mates out. The standard women's equivalent to this is to willingly put yourself in the line of fire (bars, dating sites, etc) and wait for a guy to hit on you/ask you out so that you can evaluate them.
Now, I'm sure that women look at men, think about men, would like to date at least some of them – but in my experience, and in the cultural frame I've grown up in, the onus to be the one to 'ask' and then make a fool of yourself is firmly placed on the shoulders of the men.
In all the people I've dated, I have never ever had one woman ask me out. I've had two "ask me to ask them out" – I think the phrasing on the last one was "Are you ever going to get around to asking me out?" I asked her if her asking me that didn't constitute her asking me out, and she denied it. Vehemently.
That said, it's no wonder that guys, who aren't sure if it's friendship or more that you're seeking and don't want to run the risk of being mistaken and losing out on an opportunity and a potentially successful matchup, resent being put in a position where the reality is more like than not they're going to be told that they've read the signals wrong.
How would YOU feel, women-folk, if the roles were reversed? Imagine you went to a foreign land where the role of asking potential partners out falls on the women, not the men? Where no matter how much a person might like you, chances are they're never going to make the first move? And where even if you do ask, lay it all out on the line, and bear your feelings and emotions to them, chances are they're going to "friendzone" you?
I'm curious – a question for the female-types – how many times have you been the aggressor in the asking, and how many times have you been friendzoned?
Maybe you should be following me on Google+? Just a suggestion.