The thread just merged wasn't initially about open vs solo modes in any way or form, so I'm disappointed at this merge. I may not have agreed with the OP, but there was a debate to be had. Now I can't have it because the thread has been pulled into an unrelated one because some people will talk about open vs solo in every thread regardless.
I'm disappointed.
Here was the OP's "Too Long, Didn't Read" summary:
TLDR:
The cost of trading in open is currently minimal, it looks like it is likely to increase. The added cost will be a higher risk of damage and destruction (so less risk weighted expected profit) and Cargo capacity lost to defensive modules (so less profit per trip).
There is virtually no benefit to trading in open as opposed to Mobius or Solo. The most efficient and rational reaction for traders is not to volunteer for added costs where there is no benefit to them.
It looks like traders in open will need to add heavier weapons (increasing fuel costs) and sacrifice cargo capacity (for higher class shields and shield cells) in order to adequately defend themselves.
Therefore, it looks like trading in in open will be less profitable than in Solo/Mobius.
<snip>