Thumbs up! Fully support this. Wreck all the furnaces at once! And while you are at it, please destroy all taverns as well. I don't know of anything else in Yliakum that nearly stops RP in its tracks more than that people gather at taverns to live their social life all day. Or maybe just implement a limit on how many beverages a single player may order from Allelia per day.
Seriously. Do you roleplayers actually think first before claiming that feature X will/would/does harm/benefit RP(tm)? Sure, let's take furnaces away and while we are at it, also monsters and heck, best quests, too. Once there is nothing else to do in the game, people will surely start roleplaying (whatever that actually means) out of pure boredom. Thumbs up. Oh and maybe we could even limit the world to just the tavern, so people don't miss any of the excitement that comes from exploring all the different ways in which carousing can be roleplayed.
PS: No, I'm not a crafter. The idea alone of having to craft is almost obnoxious to me.