Automatically making Thread Titles in "Title Case"

[Lynne]

It won't be as easy as you'd like. You will have to write a plugin to take the input and before it is saved, you convert it to Title Case. That may be easy.... but then you need to consider all the other times a user may change the title and make sure that all those times the title is converted to Title Case (like anytime the title is edited (quick edit, or advanced it) and both in the thread or in the forums by a mod or whenever).

Look at the hook "newthread_post_start" and you can probably use that. The new post is built just after that.