It appears we can change our Subjects now. Maybe we always could but never noticed?
For instance, you posted a thread in the TruckStop. When viewing the truck stop you can double click next to the subject of your thread. It changes into a Text box and lets you change it.

 

uh oh....who gave him mod powers?

damn, we (mods) cant do anything fun anymore...

 

So did i just stumble across a secret?

 

wtf.... man. I can't do it now

Next time I'ma just save it as my lil secret

 

i think its only while no was has replied to a thread yet? i could be wrong?

 

Perhaps. I'll give it a shot next time I create one