Tagging is great on jerseys, but it can be very important to actually cross reference the numbers on the tag to make sure it describes the appropriate jersey.
Here, we have an item that was listed on eBay described as a game worn Jonathan Toews jersey, no LOA. Joe was able to cross-reference the number in the tag on this jersey to an Andrew Brunette from 2011-12. The consensus here is that the jersey either had the numbers and name changed or the tag was removed from the original jersey and applied to an authentic.
Either way, while you are out there, always check the tags, especially if the price is too good to be true.