I know there are like 100 post about this, but I really think it worth 101.
I'm not here for whining about the solo/group mode (Ok, maybe a little); but to suggest some possible fixes.
The solo/group mode is killing PP: Is a fact; 90% the players (At least those who I talk with) agree with me. Makes 0 sense fight in a system where you are unable to defend yourself.
How can I defend my system from "invisible" enemies? How can I fight against the called Fifth-Column if i can't reach them? I'd love to just stay in a system and "patrol" it; so if I see an enemy CMDR I can stop him.
So, many people says all these "Close the solo mode!!"
I don't think this would be a good idea. The solo/group mode is really useful for some situations like PvE, newcomers who don't want to be chased by "pro-players", people who just want to enjoy the travel, people who just don't feel really sociable at that time...
We can't delete that mode, but I think it can be fixed. How? Easy: restricting PP to open mode. If you play solo you just can't carry fortifications/preparations, your undermining kills does not give you bonds, and the minor-factions influence counts just 50% (or 25% even) that an open mode.
I know it wouldn't be perfect; but just a little bit better.
Anyway is just my humble opinion.
PS: Sry for bad english.