It's a message: Everyone should be buying Ethereum right now.
Take your shitcoin pumping somewhere else, we not interested in ETH trolling and people being off-topic to pump Alt coins. ^hmmm^
This is their Editorial policy,
http://www.coindesk.com/editorial-policy/I would like to point out or highlight a specific part, namely :
CoinDesk now accepts payment for product walkthroughs and these posts are clearly marked as ‘Sponsored’. We also accept payment for the publication of company press releases within the Press Release Service section of the site.