On WB there is consensus that 2011 is a bad vintage in burgundy. But these charts (and Robert Parker) show 2011 as being not that bad (and better than 2012 and 2014).
Any tips on how to read and rely on these charts?
Don’t. Alternatively, I have some 2011 Barthod I can sell you. Great vintage.
Yes, some of these ratings would lead you to outright bad buying decisions.