[Feedback] Option to 'close' polls?

Hello,

So I love the option of a poll, I've been using the feature a metric arse ton and it has really helped. The main way I find myself using it is to ask viewers what kind of post (I like doing weekly post 'series') they would like to see next, however I have the awkward problem of having older posts having the poll about a week I've already decided on.

As such, can we have the option to 'close' a poll? Delete works too. I understand not allowing the ability to add in another poll or being able to change it around, but there are simply no reasons to continue having a poll on an older post if the subject matter has come and gone. Albeit I have the unique situation of drawing attention to my older posts, I still feel it can be a helpful addition. Thanks for reading! =)