It's not even an indication of quality, it's an indication that many people use it. I guess you can quibble about definitions all day if you like, and you can

It's not even an indication of quality, it's an indication that many people use it. I guess you can quibble about definitions all day if you like, and you can take "family heirlooms" literally instead of metaphorically as it was intended, but that won't make Wal-Mart a seller of quality items nor will it make PHP a well-designed language under any sort of definition that is relevant to reality. And, honestly, if the only thing we're going to argue about is whether or not quantity equals/implies quality and the definition of "quality", the argument against PHP has already won.