Replying to a forum thread with a post that has at best a loose connection to the thread's topic, with the result that the thread starter's question gets side-tracked.
Often, the tread gets completely derailed as more forum members respond to the hijacker's post or add their own problems to the thread, which are not related to the either the original topic, nor the hijacker's topic.
A vague thread title is an open invitation to hijacking a forum thread with all kinds of unrelated reports.
When a person starts a posting on a message board, or forum, or Facebook, that others are able to comment on, that original posting and the comments on it are called a thread. A thread hijacking occurs when one or more individuals commenting on the original posting, go off topic, creating a separate conversation. This is rude, and bad internet etiquette. If people want to discuss a different topic, they should start their own thread.
Below is a thread, consisting of an original posting and comments on that original posting. They illustrate a thread hijacking.more...
original posting: I'm so excited that my cat has learned to use the toilet with City Kitty! The training seemed like it took forever, but it's so worth it to not have to deal with a litter box any more! Has anyone else done this?
comment 1: Ugh! I just started training my cat, but he can't seem to move beyond the orange stage. How'd you get through that?
comment 2: I'm training my dog at PetCo classes. She's very smart. She learns the commands faster than the other dogs.
comment 3: I'm training my dog in PetCo classes too. They have great trainers. They're patient with the dogs and the people.
Comments 2 and 3 are off topic and are hijacking this thread. The person who made comment 2 should have started their own thread. The person who made comment
Forum speak, is when a thread is taken from one direction of discussion to another completely off course topic or many different topics in a short period of time.
The Canadian members on SXC are well known for hijacking many topics in the free photography communities forum.
The act of going into a discussion and hijacking the topic into some self serving diatribe that only the topicjacker cares about.
I was running a perfectly reasonable conversation about rabbit breeding until some topickjacking religious nut came in an got everyone worked up by talking about her theory of how rabbits are the evil demon filled workers of Satans minion.
A topicjacker is a person who comes into a discussion about a specific topic and hijacks the conversation with irrelevant and usually inflammatory ideas or assertions.
We had a nice little exchange going about the idea of non religious ethics when a flaming topicjacker came in and attempted to make the entire discussion about bible verses.
Taking over a thread on a message board by taking a part of the original posted topic, twisting it around and "hijacking" the thread itself. What happens is that the original content contained in the post becomes moot and whatever the "Thread Jacker" has manipulated the content to be becomes the new content thereby "hijacking" the original intent of post. People now respond to the "thread jacker's" input and the that becomes the focus of the tread.
LK25 did an excellent job of thread jacking Koko's post on Dennis Landolt.
Koko's posted topic on Dennis Landolt (PSU Football player) and comments regarding his development on Penn States FOS site becomes indictment of whole offensive line:
KokobewareHI: "Why do I feel like this thread is about to get hijacked? What happened to my original question?"
PSUnittany: "LK25, the thread was about Landolt & his progress...and (of course) you spin it into another "the staff is lazy at recruiting - we are doomed!" threads...It's so tiresome. Please link me to any threads that you don't hijack & ruin. Thank you."
OCCalif: "Although LK25 has jacked this thread to a degree, I feel his concerns are somewhat valid- we should be concerned about our offensive line."
The act of changing the topic of a specific thread of email chains to something pointless. This is most annoying when seen in email chains planning a specific event. An extremely irritating abuse of the reply-to-all button.
Person 1: Have there been any good ideas on the New Year's Eve chain?
Person 2: I don't know. I stopped reading it after Keppler chainjacked the it.