Can we modify thread title?

Is there any way to change the title of our threads? Search terms are space sensitive and it makes our threads not appear in search results.

In theory, clicking advanced from the edit screen gives you a box to do so, but I've had mixed results.

Not once there have been replies to it. Report the thread and ask that the title be changed. Don't PM a Mod, they may not be around; reporting goes to all the Moderators at once.

Ok thanks

and there's good reason not to be able to change titles.

FS: Brand new, minty, 5DIII

changed to:
FS: Slightly used, scuffed up 5DIII.

Buyer: Hey, seller, This 5DIII doesn't look minty.

Seller: I never said it was. Look at my title.