Well I'm here so I guess I'll answer.

There are many human drivers of fire, the first and foremost being, well you know, lighting a fire. And boy, do humans light a lot of fires.

Take for example, here is a map of active fires around the globe, right now:

First order human drivers of fire are things we actively or accidentally do to light a fire. Ignition is a fundamental for fire to happen, and humans cause WAY more ignition events than nature does. Things like a cook fire, burning brush or downed debris for management purposes, infrastructure like power lines or fueling stations, car accidents, lit cigarettes being thrown out etc.. etc.. The timing and frequency of these events directly influence the frequency of fires.

Second order drivers are things like vegetation management, home placing and construction, and other biophysical drivers. For example, introduction of invasive species like bromus tectorum, which burns very readily, represents more fine fuels in the environment. Yadayadayada more fires. Other things around vegetation management would fall into this category, such as the suppression of fire, or the psychical thinning of fuels in forests, or prescribed burns.