I never post feeding pics or videos on my personal facebook - at times I'll post pics of my skinks or other animals eating something cool (my male blue tongue will steal my dog's toys and try to eat them, for example), but I feel that feeding pics can often reflect poorly on us as keepers. Wait, wait, hear me out here - imagine the people on your friend's list, this is their ONLY exposure to a reptile lover. That exposure? The delight you take as a keeper in the fact that your animal kills and consumes another animal, regardless of the rodent being alive or F/T. What do we think of people who like ripping the wings off flies? To the outsider, that's what it can seem like, and is one reason for the negativity surrounding our hobby.
I have a list of people that can see really reptile-specific posts, and they get to see posts that talk about my delight in switching such and such snake to F/T or the silly way my skinks chase down fuzzy/hopper mice to eat them. But in general, I view my posts about reptiles on facebook as just one more form of outreach, as so many of my friends only really think about reptiles as pets because of their friendship with me. Since those public posts are a form of outreach, I treat them as such: 99.9% of my posts are happy, positive, and safe.
It can be a fine line to walk but I feel caution in your public image with your reptiles is warranted. I wouldn't take any of my snakes out to my front yard and feed them there; I'm not going to post feeding pictures on facebook either.
Just my two cents.
-Jen