In day to day life,
Hijacking or highjacking is the forcible seizure of a vehicle, or a communication device or service
Hijacking is when one person changes the direction and thought process of the originator. For example, Person A creates a post about
their experiences with ESIs. Several posts follow on talking about the pro's and con's of their experience with the Epidural Spinal Injection.
Then out of the blue, a Person X comes in and posts about their upcoming fusion asking questions. That post has absolutely nothing to do with what the flow of the thread was all about.
That is Forum hijacking While not a forum violation, it is rude to the other members.
What should happen instead, is for Person X to create their own new thread. There they can ask all the questions about their upcoming fusion.
Ron DiLauro Spine-Health System Administrator I am not a medical professional. I comment on personal experiences