The Arts Fuse is initiating a series of monthly discussions (the final Mondays in February, March, and April) on the threatened state of theater and arts criticism, particularly in our mainstream media: The Boston Globe and NPR stations WGBH and WBUR. Admittance is free -- but donations (of any size) to The Arts Fuse, an online magazine dedicated to publishing criticism of arts and culture, will be more than welcome. The evening will be made up of three parts. First…