This is not a flame but just my experience in general. In more than 10 years writing and maintaining code I've only come across type related bugs less than half a dozen times. I have however come to strongly hate the idea of types when writing low level code which moves bytes around. I have long considered the idea of typing to be not necessary anymore when the culture of programming adopted the ideals of good readability.
Of course depending on the language and coding style typing can either help or impede code understanding so I don't mind typed languages too much.
So, as long as there are people out there who, like me, don't see any advantages in types there will always be languages designed to be typeless or weakly typed.
Considering the track record of bugs vs what language used (both in my experience and from what I see on open source code) strong or weak typing does not affect code quality much. Considering the code I've actually read in my experience I would also say it does not affect code readability much. To me it's just a matter of taste (though I know strong type people disagree, they just can't back up their disagreement with facts, it's just their gut telling them to disagree). OK, that last sentence was almost flaming. I'd better stop now.