Do you take a picture of your food before you eat it?

Sometimes. Generally a good idea for someone who's a professional chef and on occasion I also get a good bit of amusement out of food porning people, for which they're also useful.

Look, my steak dinner... look, what happened to it...

I don't even check in with my favorite restaurants anymore.

Sometimes!

Nope. I mean, who the hell cares what I'm eating? Are people really that bored, to be interested in my food choices? Seems ridiculous to me, but then again, to each their own.

if i made something particularly nice looking, yes

Not generally, although I've shared a couple of photos of food I've cooked. As to the latter, yeah, pretty excessive sometimes.

I do...

No. I never understood that practice.