Good thread.
I would say that for the most part, my tastes are the same, though I couldn't articulate why before. Things like very long green to tee walks, obviously unnatural features, and overly penal design never appealed to me. And I also generally found myself preferring older courses to newer ones, and think the whole concept of having strategic options is inherently appealing, even if not recognized as such while playing. But admittedly I used to think that it was my fault that I didn't like some courses because they were too hard for me. Now I have a bit more confidence to think/say if I don't like a course because, say, the fairways are too narrow or carries too demanding (though the former gives me a lot more trouble than the latter).
One other way my tastes have changed is that I have begun to have an appreciation of links-like golf. I say "links-like" because I still haven't played a true links course yet, but I have played Shinnecock, Sebonack, Pinehurst #2 and the Streamsongs, so gotten a taste. Interestingly, I find these courses way more challenging than parkland courses. I'm just not used to dealing with that kind of wind yet. Conversely, I played Merion shortly after the Open last year, and while difficult, I didn't find it to be the "torture test" many described here. I guess it's just because I grew up caddying on and playing parkland courses, so thick rough isn't that big a deal for me. That said, I do like the links-like courses (even if I don't generally play well on them), and am hoping to play Bandon later this year, and take a trip to Ireland next year.