Black Stain, hi there.
Number 1 declined cause no one cares about others in QR unless it's a personal matter (I haven't seen Samaritans wearing a pilot uniform) and it's unrealistic to achieve any major change through pprune, except the tissues, I hope. In general that's the case everywhere. However that's your opinion.
Number 2 bought it's personal.
Number 3 is the most common cause.
A little excursion into the pprune rules:
We at PPRuNe also reserve the right to reveal your identity (or whatever information we know about you) in the event of a complaint or legal action arising from any message posted by you.
Cheers.