[monksy]

Wouldn't a low unemployment level be good as that the workers are currently developing/using their skills? Wouldn't that be a positive net effect on society as that there are less individuals who need social services and causing crime due to boredom?

[RobertoG]

On society maybe, but lower unemployment creates competition for labour and that create more profits going to labour instead of capital.

[warrenm]

It's "good" in that fewer societal services may be needed.

It's "bad" because there's no buffer to absorb increase in demand of production and service creation