This post is actually showcasing some good criticism on Dribbble, which normally doesn't happen. I don't know why it makes you laugh.
Surprised by the comments as well. Rather than...
"Looks great! So good! Now check out my work!"
I'm assuming he hates the icon, but in the designer's defense, a great filter glyph still seems to be our white whale.
Why does it make you laugh?
"No need to worry"
Vague post is vague.