First time posting here...
I've been using Evernote for more than 3 years now, I've became a paying customer after a promotion from Dell, been using and paying the Premium subscription since then.
This change in policy, how it was worded in the new EULA is too vague and concerning, for those of us who store personal information on Evernote, even more for those who store corporate information.
We pay for your services, mainly because the product is awesome, but also because we don't want to be the product. When you use a "free" software to store, share or analyze information you're in turn sharing the data with the developer so they can profit on it, using Gmail or Facebook, we all know that, free in this case just means you are giving something in return that is not money.
Now, this Machine Learning and other "Needed access" should be an "Opt-In" choice, period. We are paying you to use the application and store the data.
With most big companies these days, the only way to send a message is hurting the income/sales, so if this is not changed, I'll not renew my subscription next year and move to a private and open source cloud solution. I hope more people see the concerns and do the same.