Biggest turn offs?

No communication - It's never fun or nice when someone shows interest one day and then stops talking altogether from then on. Serious relationships require communication, otherwise you're just wasting each other's time.

Impulsive Judgement - A person's most useful asset is not a head full of knowledge, but a heart full of love, an ear ready to listen, and a hand willing to help. Even if communication isn't a problem, there's always those haters who never have anything nice to say. They try to judge you like they think they know your whole story, but the way they're looking at it is wrong. We don't call them "toxic" for nothing. If you meet someone like this, chances are they are bullies with nothing better to do. They crave social interaction, yet they have nothing social to say and that gets them pushed away very easily. I've had to eliminate hundreds of fake friends like this, just because their negativity was destroying my peace, patience and kindness. It's one thing when you've been through Hell and just want someone to empathize with your pain, but when you use that to pick on others who open up to you the same way, you're asking for trouble every time. Nobody likes hypocrites, they never practice what they preach and it's one of the most annoying inhuman traits on the planet. It takes respect to get respect. Having the WRONG attitude is not going to help you find the RIGHT date either. Never let anyone poison your peace and then guilt trip you for being fed up with their hatred.