Cracks on LEGO minifigs~Complaint

I don't usually do complaints about LEGO, but I recently noticed some cracks on my LEGO minifigures, even if they are newly bought and  I haven't played with them much. Pics below

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The cracks always occur in the same area. The bottom right of the torso,
and the right arm. I bought Kai (Ninjago) about two weeks ago, and this already occurred!

Here are more pictures of other minifigs,

These cracks bother me when I am playing with the minifigs. Most of my figures have them. I am not sure what is the problem, but I try to brush it off. Just a small, stud-sized complaint to LEGO.