This is not very surprising, "Science" is a human playground as many other fields: scientists produce publications, and are confronted to other schools. So yeah

This is not very surprising, "Science" is a human playground as many other fields: scientists produce publications, and are confronted to other schools. So yeah, they can slightly cheat sometimes. Moreover even something as big as the Sokal hoax can happen... The important thing is to keep the field intellectually stimulating and honest enough to 1) keep progressing in the average case 2) keep the most brilliant ones in.