Honestly, solely for the creation aspect.
I'm a very creative person and FH is the perfect place for me personally to fuel that creation. I love animals (especially wolves) and being able to create my own maps, an actual map that my character that I created can run around in, is particularly amazing to me. I can even share those maps and with friends! Not to mention adding my own vision of what my character looks like onto a model that I can play with and share with friends is pretty cool. I was never one for RPing, but, FH really pulled that skill out of me and I found that I really enjoy RPing. To me, it feels like I'm writing a never ending book that could go anywhere I want to take it. FH has given me the opportunity to create these amazing characters that I've developed, grown up with, created their backstories and fallen in love with, not to mention other people's characters that I've enjoyed greatly and laughed with x)