If you follow this link you will be able to read an exchange of broadsides between Encyclopaedia Britannica (EB)and our very own Nature. Nature published some material suggesting that in some areas of science Wikipedia entries can compete with those in the magisterial Encyclopaedia. I trust the guys in Nature totally and I am sure their assessment was both objective and correct but even if they were being unfair the last thing I'd do at EB would be to publicise the affair. This can only damage EB's reputation and that would be really unjust. Nowt so queer as folks.
As Timo says in his blog, judge for yourselves.