1. I feel like I'm repeating myself but breaking radio silence while cloaked makes zero sense as it would ruin your cover and reveal your position. Unfortunately game mechanics do not support the latter.
2. People would spam endless crap while flying next to you. It kinda makes a difference if they are on the other side of the system.
3. To make it harder for lolwuts to insta-kill people without breaking rules.
4. It was voted and most people agreed with it. Did you vote with all your alts there too? Because you did so in the TLAGSNet thread and there is no reason to think you didn't do it in an anonymous poll.