Infusions really need to be craftable in larger quantities.

[KageTokage]

The tactic infusion spammers tend to use is to flood the market and tank the prices to the point where the legit crafters feel like it isn't worth the time/effort to craft them anymore.

Being able to craft more wouldn't really benefit them much when they're already outpacing the demand by leaps and bounds (The infusion spammer on my server basically keep two retainers fully stocked with stacks of 99 infusions at all times), whereas the legit players won't need to spend nearly as much time to get a good stock of infusions onto the market.

In the end, it's still not going to prevent the inevitable price wars from happening, but it at least keeps them on a more level playing field if everyone is able to keep their retainers fully loaded with stacks of infusions.