I haven't been on Wallace Chung's tieba (a Chinese forum), but due to his popularity, I think there are quite a few fan fics out there about him. In actual fact, the Hu Ge tieba does not have any fan fictions. Most of the fan fics I read are GeShi [ancient] fanfics. Some fan fics don't even have HG or LSS in the cast list, but I just picture them as the leads (sometimes it's actually inevitable, because the OTP is Long Yang and Long Kui, so I naturally link them to Hu Ge and Liu Shi Shi).
The fan fics I read are about 75% romance and 25% wuxia (characters sometimes don't even enter the JiangHu
). I hardly read any fan fics that are mostly wuxia based (like books by Jinyong/Louis Cha or Gu Long/古龙).
**I'm currently starting a book by Qing Leng Yue/倾冷月, who's works are mostly wuxia, with only the last few parts dedicated to romance. That should be a new change for me.