In this thread, most of the responses equate to: can't sing = don't like. In other words, a technical capability (whether a person can sing or not) is being reduced to a personal preference (whether someone likes a singer's voice or not).
This is not surprising, because a performance is more than an demonstration of technical proficiency, and in most cases, it is the performance that resonates with a listener, rather than vocal quality. Two good examples often used are Bob Dylan and Tom Waits. Both have vocal techniques that would be likely to appall a vocal coach, but both have a legion of fans who hang off every drawled, nasally, or croaked word.
Beauty, here, is in the ear of the beholder, and being able to sing or not (in a technical way) is largely irrelevant.
However, if you are embarking on a musical career, it is risky to justify a lack of vocal proficiency on the (spurious) basis that "99.99999%" of singers can't sing (therefore you don't need to be able to either). You may be able to get away with it if you can deliver a convincing performance, but being able to sing in tune and on time is likely to win you more fans earlier.
}, so I couldn't really comment on this nowadays but I'd sure as the sun is hot and blinding argue against this tooth, fang and claw up to the end of the 80s. 
Thanks Grim 
