By contrast to that article on gold, the Central Banks are applauded for buying equities by Bloomberg in an article titled "Central Banks Load Up on Equities as Low Rates Kill Yields" with the opening paragraph being:
"Central banks, guardians of the world’s $11 trillion in foreign-exchange reserves, are buying stocks in record amounts as falling bond yields push even risk- averse investors toward equities."
The full read is at http://www.bloomberg.com/news/2013-04-24/central-banks-load-up-on-equities-as-low-rates-kill-bond-yields.html
My comment: Note the friendly use of language such as "guardians." No mention that the banks themselves just printed the $11 trillion.
So of course being called "guardians" is just biased mainstream media trying to influence its readers to applaud the Central Banks.