My take on the "only pixels" thing...
Attacking another ship because you just happen to meet = game.
Travelling to Deciat or Sag.A to attack ships because you hope they'll have wasted a long journey and lose a lot of gaming time = RL nastiness.
The game allows all that. Carry on, no-one can stop you, it's all within gameplay. The only problem is when people want to do the second thing and also want me to think they're good blokes; and that's their problem, not mine.
I think even this is going too far. Attacking people at Sag A* is allowed by the game mechanics. I'm willing to bet a lot of people, when they first hear about something like this, are more amazed it's even an option.
There's been a lot of cool stories created by action at Sag A* as well.