Maybe some on here simply want to see the forum unfairly balanced in favour of the JB innocent side!
When two opposing sides get together it is inevitable there will be conflict.
If however the forum wants a closed community of the same thinking then so be it - the forum has definitely taken a step that way with the recent banning!
Nick, I think it is because pro posters are sometimes split, with grey areas to boot. If the relatives had any involvement in 'improving' the evidence against JB, then those linked to the relatives who come on here, risk being judged as having a 'vested interest' or 'ulterior motives'. The flip side of the coin is that these people may genuinely believe that such unproven allegations are also simply not true. There is therefore no actual 'vested interest' or ulterior motive' from their perspective.
Regardless of who had involvement of 'improving' whatever, I think we need their views, experience and take on the case, back on the forum. Others might disagree.