[Shasown]

Because he thinks everyone should be up every week, he has said that more than once, that way the publics most unpopular housemate gets the push as opposed to one of the two housemates most unpopular HM's

This way it actually prevents any group block nominating and means a fairer eviction process.

And it probably means Endemol takes a much larger rake in of cash from the votes, as more people will vote to save their own particular favourite.