It is such a poorly crafted poll though.
Asking "should veils be discouraged" begs the question about circumstances. I don't think the result of the poll is a clear indication of anything, as I'll wager a clear majority would say that they should not be discouraged at private events etc but should certainly be discouraged in identification photographs or in places where security and identification of the person and reading one's facial expressions are vital.
I mean I think you'd be very hard pressed to find a single respondent who'd say that they are against allowing veils at religious ceremonies. And I also think you'd be very hard pressed to find many who'd say a veil that completely covers the face is ok on a driver's license.