Yeah, you may well be right. However, the amount of people working is much greater than last time, so it will be harder for them to single people out.
Yep - though it isn't a case of singling people out - it is just not having the same working relationship potentially. I'm not saying people will be bullied or treated unprofessionally - there just potentially won't be the same level of warmth between colleagues. That may not be an issue for some - and for others I suspect it won't happen.
I suspect the attitude to long-standing freelance colleagues who have just honoured their contracts and done nothing more will be different to those more 'random' people who have decided to cover the shifts of others who have decided not to come in.
There are also likely to be some producers and presenters who are not members of the NUJ and are quite open about it, and are just working their shifts as usual. If these people have always been honest in their attitude to the union - then I suspect their colleagues, whilst not agreeing with them, may have more respect for them than those who are either NUJ and decided to break the strike, or are freelance and have accepted shifts to cover those striking.