Anyway, addressing the various "don't understand why [class] got voted off/is still here" comments: it seems almost too obvious to mention, but people have different tastes and different criteria for deciding which class to vote off.
Some will vote off a class because they are not familiar with it. Others will vote off a class because of what it represents (people who simply don't like incarnum will vote off the totemist, for example). Some will vote off a class because they don't like the flavor, or they don't like the mechanics, or because they think the class should have different flavor or mechanics.
About the warlock: I like it because it's a good class to give an inexperienced player who wants to try a "spellcasting" character. Its eldritch blash enables it to contribute in combat, and it has few special abilities to keep track of. I will probably get round to voting it off eventually, because although it's nice, there are classes that I like more, and the chaotic or evil alignment restriction doesn't sit well with me. I mean, I could adapt the warlock mechanics to make it suitable for a Lawful Good character by tweaking some of the invocations and turning its eldritch blast into something that draws on the power of the Silver Flame, but that would be a house rule.