It's the fact that they seem to be equipped with magic frame shift drives that annoys the heck out of me. You can be travelling at over 150 times the speed of light, they're no where in sight, not even in your contacts list. Then suddenly from out of the edge of your scanner, ZZZzzziiiiipp! They come flying over at super warp speed and stop dead right behind you and 2 seconds later, bam! You're being interdicted.
Of course that's not including the others that just magically appear right behind you out of nowhere, or the ones that some how manage to be there already waiting for you every time you drop out of SC. Which is especially surprising given that they appear to have terrible short term memory problems. "I knew I'd find you all that tasty cargo! Don't try to run." Hang on a minute, didn't we already have this conversation the last 3 times I ran away from you?
I think what's especially annoying and frustrating about it, is that it is purely straight up cheating by the AI and there is nothing you can do to avoid it. You're flying through the middle of space, there's no where to hide, you can't take a quick left, then a right and another right down that little backstreet to lose them. All you can do is fly in a straight line to where you are going and hope that you get there without too much hassle.
As for the space lanes, what rubbish! So if I make a bee line to a port from the drop in point at a star I'm in a space lane, but if I just deviate from that a little bit I'm not and somehow that makes me less likely to get interdicted? Despite the fact that I'm still just as visible on the scanner, as is everyone else as they were before I left the space lane. Utter nonsense.
An alternative idea to the current interdiction system:
I understand it's hard to make a chase and evasion game set in a big empty void. So how about instead of just having pirates pop out into SC from nowhere right behind us or have them chase us from half way across a system with their magic super fast drives. Why don't we have them lie in wait in ambush instead? As we're flying along we could perhaps detect disturbances like the USS's from which the pirates pop out and give chase and not with any super fast magic drives either. If they pop out ahead of our flight path they can still interdict us as we fly past. However it will also give us a fighting chance to try and avoid them, either by steering a course clear of any suspect signals or some last second evasive manoeuvres if we see them pop out in an ambush. They could set up a chain of ambushes ahead of you and have you weaving in and out try to avoid them. Would be a heck of a lot more fun than the current implementation. The same would work well for cops and smugglers too. And it would make the current space lanes make a bit more sense too if you were more likely to encounter them along popular routes.
+1! Quote of the day!