Make the best beer possible, remember? For me, it's a balance of the 3. I'm not gonna skip something if it means the beer sucks. But we each get to decide what's important and what's not.
Right. Occasionally I make a beer where something didn't go as envisioned... an ester, a smidge of diacetyl, maybe hops that were past their prime. I'm the first to notice and I will generally not recommend that beer to others. I am [and should be] the most critical person of the beer I brew. I have known a number of brewers who thought their clearly subpar beer was FANTASTIC! I hope that doesn't sound condescending but the brewer has to know whether the beer is right or not. Consistently bad beer needs to be addressed, for sure. Maybe a bit of searching, tweaking, troubleshooting. That's not always fun but it's necessary. Then once that's figured out... back to the fun!
Well, that's the deal, if they think it's great, then they'll improve at their own rate. We all thought our beer was great years ago, then gradually we got better. Now I bet if we drank beers we thought were so great years ago, we'd think, hmm these need some tweaking. Or maybe not! But, like Denny says, best beer possible while having the most fun. Some people love the technical science side of things, whilst others are more artists. I'm a little bit of both, although I tried to be more science-y for a good couple of years. I've gradually gone back towards the center of the venn diagram of art and science.