Is it possible to amend the site software so that a poster can go back and change the initial header of a new thread after it has been posted?

I have, for example, recently posted a thread on the BA board where I reference another poster in the title. Except I put in the wrong name by mistake

I can go back into the original post and change the title without any problems, but the change does not carry through to the forum home page. This seems a little odd, to say the least.

Even odder, to be honest, is that in THIS forum it seems that I can change the title to a thread and have it carry through to the home page! Is this a bug on the BA board?