In response to something somewhere else: I consider 'taste' as personal, but 'good' as intersubjective. What appeals to any one person is largely dependent on their circumstances and exposure, and may not be readily changed by reasoning. But it is not necessary to base one's idea of 'good' wholly upon one's tastes. After all, one can be told how and why slices of sharp cheddar and tart apple complement eachother, and thus recognize this as a good combination worthy of recommendation to others, yet still not enjoy it (much, if at all) personally. One can recognize a good banjo player without especially enjoying the sound a banjo makes. And so on. Of course, not everybody is capable of or interested in being able to appreciate or understand things which do not particularly appeal to or please them. It is something of an acquired taste, and bias can get in its way. Everybody has their limits. I still cannot quite hear why Charles Mingus is so revered in jaz...
Anything, everything, and nothing at all for years at a time.