The elimination of the bar code feature did it for me, but it's been a while coming. The overhaul of the forums a couple years back that make them almost unusable, the exercise calorie estimates being so messed up, the inaccurate nutrition entries for food, it won't track net carbs without a subscription...I could go on.

I tried Chonometer six months ago and even got the subscription because it's just that much better a tracker. I'll miss the forums on MFP, but, honestly, they are a shadow of what they used to be. Thanks for being there when I was over 200 lbs. and showing me my macros and what I had to do to change. It's been a good run.