On www.cellartracker.com you can declare which wines you have purchased and their vintage, etc. There is also a "drinkability"/"drinking window" field where you can recommend when a particaular wine should be opened. This is a valuable feature for vintage wines but for non-vintage it is completely useless unless specifying which year the wine was bottled/cellared.
What is the recommendation when adding NV wines to my cellar? Is to create a new wine (based on the existing NV wine) and add the designation (Mise en Cave 20xx)? Has this been discussed?