Yes acidic juices can crack a tank or melt the plastic, and vaping melted plastic cant be good. Flavors that run the risk of doing this are cinnamon, citrus (orange lemon ect) and the ones listed on the above thread.
Anything glass or pyrex will not crack or melt. I use a Vivi Nova take, with an aluminum tube for it so I dont have to worry about what juice is in it. The tubes are available from multiple vendors for $3-4