I have always had migraines and they haven't gotten any worse since I started cracking.

YEah, it's made my fingers more flexible.

I like to push my shoulders back and together. It's not very loud, but it's quite satisfying.

Through this site, actually. I discovered it out of curiosity then tried some of the techniques I saw. I now crack my back, neck, knuckles, thumbs, toes, backs of my hands, knees, and shoulders(very loudly).

Sometime when I bend my fingers up with the middle joint bent to crack the middle joint, the back of my hand pops. It doesn't even seem to be a joint. Does anyone know how this might work?

I'm not sure. At one point I swore I would never crack my neck, but it's actually quite pleasant. Sternum sounds painful, but it probably isn't.

I'm just curious, does anyone have any ideas why joint cracking is generally considered to be disgusting? It can't be the sound alone, because for me most just sound like snapping fingers.

P.S. Also, which one do you use to gross people out intentionally? I use my thumb. I have to pull it and bend it at a weird angle and then it makes a sickening little pop.

every so often my big toes start hurting and I need to twist them to make them crack.

Let's see:
My neck only cracks on the right;
My right knuckles and thumb crack more often than my left;
My left shoulder is far louder than my right;
and my right toes crack better.

Which way do you like to crack your knuckles most?

For me, it's when sometimes my right index finger get's kind of stiff. I stretch the ligaments for a couple seconds, then push down. The base makes a loud pop, and it hurts and feels good at the same time.