Update: reader Andrew Porter has confirmed that Caffe Buon Gusto is moving to 72 Clark Street, evidently to the space previously occupied by Tazza. It seems the owner did decide that one Italian restaurant on Montague was enough.A neighbor alerted me to paper covering the windows at Caffe Buon Gusto, so I rushed to 132 Montague Street (between Henry and Clinton) and got this photo. Note the sign that says “We’re Open” and the lack of anything thanking us for our years …