Ireland is due to hold the world's first popular vote to decide whether gay and lesbian couples should be allowed to marry. The most recent opinion poll in The Irish Times indicated that 58% will vote in favor with 25% against, 17% were undecided or would not vote. Leaving aside the latter, this would suggest that 70% will vote Yes.
Twitter is populated with all kinds of users. There are celebrities with millions of followers and regular folks with a few dozen. And then there is Paul Krugman, who amassed a huge following without knowing it.