Hey, thanks for mentioning dPoll.

dPoll is a solution to get that kind of feedbacks, but not the perfect solution. In order to create a poll at dPoll right now, you need to use the Steemconnect. (which requires Active key sent to Steemconnect at first login.)

I can understand having sensitive accounts (like @steemitblog) makes the dPoll a no-go at the moment.

Steemconnect related concerns raised multiple times before. We're trying to address the situation by making SC as an optional authentication method. Voting via Keychain/3rd party transactions was the first step and already deployed a couple of weeks ago.