Only type of thread.
It is on the lower left corner under tags listed as dumb feature, click on it

 

Here is an example of the 'similar threads' being not too similar. After the thread 'Using Thompson's Wagerseal for Bed Wood' one of the similar threads is entitled 'Capping a Brick Chimney' in the non-automotive general discussion forum. Wow,really? Capping a brick chimney? Not even close. And I never heard of that forum! It just makes me laugh and shake my head!

 

Wow. How timely. I was just thinking the other day what the best way would be to cap a chimny. Lol. Just kidding.
I too just noticed this feature but havent really explored it yet but seems like it could be helpful. Just pick and choose the related ones that sound applicable.

 

OK. So NOW, this thread has the feature added. How many of these links do you think are referring to the subject of the thread?

 

definitely the one from 2006 about adding 20 inch wheels on a an excursion, and the one about the edge cts tuner.
i am pretty sure the bypassing remote functions and the software one are directly related to this thread too.