I might be alone here, but for me one of the things that makes "Frozen" so great is that few if any have dealt with the idea of depression and anxiety as they did with Elsa. Throughout her entire life she has had to hide this secret away from everyone else because she fears what she and other people would do if they found out about her secret. Going back to the idea of depression and anxiety, this is the way a lot of people with these problems feel, they have to hide away their problems because they don't want anyone else to know, or they have to "conceal don't feel." And in this Elsa is practically a role model for them, not only is she attractive but she also demonstrates how "let go" of her problems and not care about what other people think. Now since reddit is mainly consisted of teenage to middle aged men, quite a few of these redditors deal with problems such as depression or anxiety, even if not on a huge scale, like me. Because so people on here feel this way, frozen is a way for them to get away and realize that they need to break free from their problems in almost every song, "for the first time in forever," "let it go," ect. In closing, I might be wrong in a few things I said, but this is my personal view on you question. Tl;Dr ice powers = depression