EOS recently dumped lots of ETH. You guys think maybe they are trying to damage them and looking to show the community that they will be the better alternative? Or maybe theyre just paying wages who knows 
ICOs that take payments in ETH do tend to sell large quantities of ETH too, it's just what happens. Crypto is volatile, and it makes sense to have (at least some of) your budget in dollars. For the same reason that although I love crypto, I do at the moment need my salary to be paid in fiat because the real world demands on me are also in fiat. It's just how it works, and will be until crypto reaches maturity and stability.