That mildew on the buildings is a byproduct of the distilling process. It's like "black mold" that may build up in your bathroom because of the humidity. It's everywhere there is distilling and the article you saw was right in town. It isn't so noticeable or an issue if the distillery is a distance away from other businesses or homes. They will get it under control. I haven't heard about the tax thing but the distilleries pay tax on every ounce of distilled spirits they produce. The unfair thing is that as the barrels mature, some of the liquid evaporates but they still pay the entry tax on 53 gallons. There might only be 20-30 gallons left after 5-10 years