I don't mean to be a party breaker, but how can you just wonder why are they so unpopular? If you care enough to ask, you should care enough to try and learn from experience. You shouldn't wait for that one awesome person to come and jumpstart the Charoda trend; YOU should be that person. I can understand that you don't want to start out alone, or that finding compatible writing partners can be hard when starting a new movement, but worrying about it will never get you started - initiative will.
When i first started here, i had three maybe even four character ideas that i wanted to implement all at once. Unfortunately, i didn't have enough time to make them all active. Mizuriel was a first, and that was really the only reason he was human. I was looking for something familiar; something i knew. Next came Gural because the charming Hatot/Radris duo won me over. Last, but not the least stands Graln. Truthfully i wanted a bird Kelvic at first, but later it grew into an Avanthal obsession that was indulged only by seeing the add that said the town needed more feral inhabitants. Even now i have 3 completely fleshed out PC's that keep collecting dust in my word documents. What's stopping me from playing them? Lack of time is my excuse these past couple of months.
Also should you ever see a love driven alchemist Nuit that keeps looking into distant corners of the world to find someone he lost so long ago - that would be me.
Should there ever be an indifferent Isur who puts his belief in Lhex and wastes his days dreaming of better times without doing much to change his fortunes - that would be me as well.
Finally, if you ever see a character so detached that only Eyris would even care to look at him - that will most likely be me as well.
No character is born special, they are made special by the stories their players weave for them; and in a way examplary talent is always shown through exemplar PC's. So i say you should go out of your way to be that one PC that acts like a magnet as he or she works their way from the hallways of your mind into the corners of our eyes.