I've been riding flats for the past year but I'm probably going to go back to clips. That said, I'll probably get something with platforms as well as clips
I hate clips for technical climbs. If you take your foot off the pedal, getting clipped back in while trying to get going immediately is a PITA. That said, spinning up non tech climbs with flats just feels inefficient. I also have crap jumping technique so having my feet separate from my pedals mid air freaks me out.
I've never crashed and remained clipped in for what it's worth