On a serious note, sync is not a bad thing. On the flip side of that, people have every right to hate on it, and their reasons are more than legit. Learn the basics of mixing to a point where you are good enough that you could mix with no technology assisting you. Then, use the technology to the fullest, but make sure you are using the time saved to do something interesting, but more importantly, make sure it compliments the music and sounds good.
As someone said earlier, people hate on it as they spent time learning a craft out of love of music. Tech like the sync button have made it so that any idiot with a couple hundred bucks can now do exactly (for the most part) the same thing, and for the most part, the heart isn’t there.
Back in the day, it was super expensive to start this stuff. Thousands on equipment, and even more on vinyl. This made it so only people with a ton of disposable cash would get into it… or the people who are still doing it from back then, the people with such a love of the music, they were willing to save all that money and invest such a large amount of money. It thinned out the heard at an incredible rate right off the bat.
Now, any idiot who wants the money, glory, and bitches, just goes online, downloads the beatport charts for free, DJ software for free, and MIGHT spend $100 on a controller. Things like sync let them have their mix sound just as tight as the one they just copped of BBC Essential Mix. To the average person, it is the same.
While all this is going on, all the actual DJ’s are bickering amongst themselves about old vs new, and while everyone is all butthurt because someone is saying their preffered format is cheating or that they are stuck in the past, their egos aren’t letting them REALLY hear each other, and no one ever acknowledges that BOTH sides are completely correct.