What’s wrong with it is there are rules explicitly against it. Not to mention the fact that it’s a cap violation. We can argue that it shouldn’t be against the rules, we can point to history, but the fact remains it’s very much against not 1 but 2 sets of rules.
Ok, I’ll concede that it shouldn’t be done, given how it’s against the rules. With regard to “hurting people”... It’s football. What is a very physical game by design. Here lately, the league and Players Association would almost put skirts on ALL of them.(it used to be just quarterbacks and kickers)