threadrot 

When a thread on a forum has multiple pages, the title and initial posts interest you but it invariable descends in to three people inneundoing each other.

In a thread about something that interests you, on page 4:

easyguy403: "LOL Shirley never knew you liked fisting."

me: "threadrot! threadrot!"

threadrot by rossom August 28, 2007

threadcop 

a person who enforces message board rules in an imperious, incessant, or otherwise annoying manner.

The term "threadcop" originates from the idea of calling a message board topic a "thread." This hails back to the naming conventions of older message board systems.

threadcop by Moggraider October 16, 2008

Threadripper 

Scientists have proof that this is the last thing an Intel HEDT CPU will see before it died

Intel fanboy: I'm gonna buy the 10980XE, it's the best of the best right now
People with a brain: The Threadripper 2970X is a thing you know. I'm going to wait for AMD to release the 3990X with 64 cores. That will crush that garbage you call HEDT and the Xeon Platinum at the same time

Threadripper by EasyLife123 November 22, 2019

Threadcromancy 

The reincarnation of old threads on forums. It comes from joining Thread and Necromancy.

Argh, stop bumping, I've had enough of all this threadcromancy.

Threadcromancy by Anon287 December 18, 2006

threadromancy 

The resurrection of a dead thread in a forum. It's a simple contraction of thread-necromancy.

In our forum, threadromancy is frowned upon.

Bob is an annoying threadromancer.

threadromancy by gorgeous_si May 19, 2004

threadmother 

The poster on a bulletin board who nags others about going off-topic.

Sally was the one who kept quoting the Op. She was being a threadmother.

threadmother by Pinkie_Flamingo December 27, 2010

threadomancy 

reviving an old forum topic after many months, often simply adding nothing to the topic itself by only replying "I agree."

Poster: I think that Bush didn't actually expect to find WMDs, he was only trying to take Saddam out of power.

2 months later.

Threadomancer: I agree.

threadomancy by sdjaks April 25, 2004