> He believes just three are necessary, AGPLv3, the LGPLv3, and Apache v2.

He being Bruce Perens.

I respectfully disagree, those licenses all have some negative component to them which make them not applicable in all cases. MIT/BSD do not have those same negatives (different of their own) and definitely are needed as well imho. Not saying those three aren’t important, just they shouldn’t be the only three.

Edit: clarified MIT / BSD are not without their own issues, just not the same as the other three.