Yes, I agree that fire safety is obviously a concern. It looks bad for all of us when people run unsafe set ups. And of course fire hazard farms should be shut down.

My main concern, not well articulated on reflection, is that it also provides an easy meme for fearful local governments to brand the entire enterprise as dangerous. People cannot distinguish the good and the bad of any group very well. You will now hear critics saying that all mining, however carefully engineered, set up, and run, is not only destroying the planet with energy waste but also about to burn the neighborhood down.

The broader issue is the selective use of negative instances to delegitimate mining in the eyes of the public, by people who have no concept of its purpose or crypto in general. Probably they wouldn't push it to putting the little guy's mining farm on the level of a meth lab, but it will probably start to be looked at with the vague disfavor of growing pot in your basement. We'll see how it unwinds this year at the state and local level.

Too late to rebrand "mining" to "network security" or "transaction validation". That would go into people's "good" mental category.