Looks like you need to learn to report threads, click the icon with the exclamation mark when reporting a post. Mini-modding can get you in trouble so remember to click the report button next time you see something in the wrong section.
After you click the icon, you then have to write a message for the mods like telling them it's in the wrong section and then request them to close the thread, move the post etc.
The ones in NU/W you really have to look out for are the threads where the new member is asking a question related to ROM hacking or anything emulation-related.