Lock old threads

I have rejoined after many years of not using the forum. After joining I noticed people are posting on threads that are 1, 2, 3+ years old. I don’t particularly want to reply to threads years old when all the replies are along the same lines.

Personally, I think if a thread doesn’t have a reply in 6+ Months then the thread gets locked.

Seems like ads are always being posted but anything other than ads it’s quite dead.