Questions (Again...)

Hi,
I've finally found some time to get back into FSX and start some modeling. I've gone through a couple of tutorials and it looks do able.
Anyways, I've heard that some companies will try and give you a err, hard time for modeling one of their planes (Gulf Stream for example). Would this apply to freeware as well? Because I can't see how they can do much if you aren't profiting off of it.
I've finally found some time to get back into FSX and start some modeling. I've gone through a couple of tutorials and it looks do able.
Anyways, I've heard that some companies will try and give you a err, hard time for modeling one of their planes (Gulf Stream for example). Would this apply to freeware as well? Because I can't see how they can do much if you aren't profiting off of it.