Yes, true that I ran a lot of things together re. late arrivals.
1. I never like it when latecomers discuss who is popular. In fact I used to like it when Davina did the eviction annoucement away from the crowd so the people in the house could not hear who was being cheered or booed. Newcomer blabbing destroyed both Nikki and Freddie. Maybe it would have happened anyway - the fact that Nikki barely beat Sam suggested she was not going to stay long - but there is always something irritating about housemates being told exactly how well they are doing with the public.
2. Occasionally a series does feel in need of freshening, but I never like it when they put in a lot of newcomers at once. In BB11 it looked panicked rather than thought through putting in three, then three more, then Sam. They obviously worried, with good cause, that all the strong housemates had gone by half way through, but seemed to have no one interesting left available.
3. There are late comers who just seem weak as housemates. Maysoon, for example was actually a bright, appealing, quite amusing person imo but it was obvious that her heart wasn't in it.
4. Putting in a latecomer to affect an existing housemate always seems unfair and awful. Bringing Nicole in, for example, as part of a 'guess Rex's girlfriend' task was funny; putting her in as a miserable, draining housemate was not. Ditto Isaac and the absolutely disastrous Jemma, whose edgy, tense relationship with Aaron and Faye cast a gloomy shadow over the house for the whole time she was in there.
5. There are latecomers I would really have liked to have seen in there from the beginning. Hira is a good example; I wonder whether (as marcus implied) they did not choose her because there was too much, as a practising Muslim, that she couldn't be asked to do. But her ditzy sweetness would have been interesting in the Lisa/ Karly/ Sophie/ Kris group. As a very latecomer in a group of louder latecomers she was never really accepted into any group, but I'm pretty sure that is where she would have landed if she had been there from day one.
6. A latecomer who had not been isolated would have had a big impact on BB13 imo and I don't think it would have benefited the series. They would have known, as the housemates did not, that the outsiders were far and away the more popular group; it was obvious that the insiders generally regarded them as dull and marginal, and almost to the end Conor, Luke S and Ashleigh seemed to have the status of alphas in the house with Becky hanging firmly on to their perceived popularity. It would have changed the dynamic completely if a latecomer had come in and made it clear that actually all the power rested with Adam, Luke and Deana. I suppose it might have been interesting to see how they dealt with the news - particularly seeing if Becky could manage a double flip - but I preferred it as it was.