Save for questionable implementation I'm not sure how Hunts are being abused. It sounds like some people are being dicks about it for sure, but beyond that, unless this "people are using parsers to find Hunts" is true (no clue if it is or not) someone getting to a Hunt faster or not waiting for people doesn't sound like any sort of abuse/exploitation of the game.
I've heard people saying this before. I don't know how a chat log parser is going to see mob spawns. Packet sniffer? Sure. But I doubt those exist in this game. They were big in FFXI.