Or incentive. Give people a reason to help.
The incentive is the creds, and I can't even pay people to unload right now. Oh! And its not like I can't give incentive; but they removed even Titan Drive Components from the market, didn't they?

What reason would people help aside from that they are your friends or squadmate?
And there isn't even a system to be able to facilitate it-the FC's were perfect for this though, you can pay people to haul. Either they let us set the colonisation material pricing, or they find a way to let us pay players or npc in another form. I'm willing to fork out engineering materials(for ships, I think suit can still be done in bar perhaps), G3 suits and weapons-the things that are troublesome to get for a few hours of hauling, etc. But there isn't a way to pay it to players, and it being an actual game function would go a long way considering its hard to not think 'eh, maybe they won't pay me/they will run away with payment'.
I do wonder if you can, say, split some profit between station and you to the contributing players, but that doesn't seem likely.
Basically the game isn't giving us a way to give incentive... Is there anything I'm missing? Something I'm clueless to that can give more incentive/reason to players? I would love to know, genuinely, because when you said 'give a reason/incentive for people to help' so you seem to have an idea that perhaps I am failing to recognise. >_<
PS: And when I say 'trust', I mean it would be better to be able to set prices like the FC. Because then it goes through the game's system, and not just solely by your word of mouth. And you wouldn't need to, say, be there and find time to meet with the player because different time zones and its harder to meetup due to life.