Hey, here's some fun facts about "JoJo's Bizarre Adventure - Part 3 : Stardust Crusaders".
For the ones who read or saw the anime, you know that one point, one of the main characters, Avdol, is getting killed by two stand users, Hol Horse and J.Geil. The author wanted the character to stay dead and afterwards getting replaced by Hol Horse, the same man who killed Avdol, after the events with Enya (just look on google and you'll understand).
However, due to fan demand, Araki changed the story by bringing Avdol back and putting Hol Horse back to his normal position as a villain. However, Araki in exchange put more focus on Hol Horse than any ennemy stand in the whole part, thus still following his story in an other way.
So yeah, in short, Hol Horse is this weird character that was meant to be a main character, but changed due to fan service. In the end, you could say it paid off.
Oh yeah, here's an image that proves the thingy I told :
Useless JoJo facts brought to you by Luggy.