Being called a liat for being small a week after a week postpartum

So recently I posted something here on the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> about how small I am a week after having my son. And I’m now being called a liar and faking my pictures. Why is it okay to judge me and laugh at me for being small and no stretch marks (other than my thighs) and it not be okay to judge someone who has tons of stretch marks and baby weight? (No offense to any body type. I think they’re all gorgeous no matter what you look like)