Thanks for your reply!
Mhh I am not sure if I want to base this - lets call it adjustment for the sake of it - on newthread.php, meaning change the way it works.
Any idea how I could piggyback onto the existing vBulletin functions / methods / checks without having to duplicate or copy them from newthread.php?
I don't wan to have the hassle to keep comparing my file with the an updated newthread.php and debug it along the way if something does not work. And I am pretty sure it would be stupid to just make an SQL insert into the threads table