I have no idea what the obsession with her is all about. She was a pretty good dancer, except for her Latin which was definitely not enjoyable to watch. She seems nice (well, maybe a bit irritating) and is gorgeous, but she wasn't that amazing or interesting to me. Had no idea who she was before Strictly and I won't be going out of my way to keep up with her.
The DS freaks gushing over her and thinking she's going to basically rule the TV is very creepy, but I'm sure they will just find somebody else to fixate on the next season.