First I'm assuming block voting is considered not such a good thing for the program, maybe some disagree with me. It's only interesting when the sides are about equal, once that changes it becomes boringly predictable. Big Brother is best when it isn't predictable and when the HMs don't have too much control over who is likely to be go. By allowing nominations to be discussed it's like they have just completely given in to whoever is the dominant group.

I think they could have had better twists to throw more chaos into nominations than they have done. Maybe some tasks used to save some people from going up for instance.

Too many HMs get off lightly, the introduction of new HMs just works to prolong the stay of some relatively boring HMs.

Also they should be more strict on reasons people give for nominations, making sure they are valid and are individual (and not just copying others).