It's unlikely that it would be any better. Right now, asynchronous USB is probably the best digital interface for many purposes because it allows the receiver (DAC) to run its own master clock regardless of the clock characteristics of the sender - this is a luxury that SPDIF does not have. Even if your DAC issues a clock lock signal, the sending device has to lock to it so you are dependent on the quality of that lock to some extent.
Last time I checked this is a discussion forum and as long as you aren't trolling your entitled to your opinion and posting it unless I missed the part in the thread title that says you can only post positively or not at all
Any SPDIF receiver must, in the long term, lock to the incoming clock rate if it's to avoid the need, sooner or later, to roll over. Bear in mind that the long term clock accuracy of some domestic kit is generally not fantastic. A buffer can help you avoid short term issues but if the clock isn't spot on, the tub will eventually overflow or run dry.
