Childless generally refers to people who want children but for whatever reason cannot have them or have decided against having them in spite of wanting them (sometimes for medical/genetic or financial reasons) Childfree refers to people who have opted not to have children because they don’t want children.
It isn’t the fact that he posts pictures that makes him an ignorant, arrogant assfuck, it’s the painting all non-parents as responsibility-free, debauched, carefree hedonists reveling in their party lifestyle. That is the real punch in the gut to those of us who have difficulty conceiving or who cannot conceive.
Granted, having a bazillion pictures of ANYTHING show up in your feed day after day is annoying, that’s why the Album feature is available so it shows only 3 or 4 pics and then lets people choose to click to see the other 47. :-)
Response to POLL: How Weird Are Your Fart Habits?:
Why isn’t there an option for “farted during sex and we both laughed our asses off about it?