hi midnight,
First of all, it is ok to get upset due to a misunderstanding or two. Perfectly ok.
Hijacking a thread simply means that the thread concerned usually is between two posters discussing a common problem or solution to a problem and someone else jumps in.
A good example of that would be essexboy and an user asking for assistance in repairing/fixes his system after a malware infection, and this discussion is between the two of them, and, then a third user/member, or forth user, fifth, and so on, jump in to say they have the same or similar problem as the first poster has. Now we have a multitude of users asking for help. The result can become confusion, and also needless clutter, as the continuity of the thread post is now broken. Other users are butting in, not good.
That is hijacking a thread.
Posting a notice or topic within a topic that is not yours that happens to be unrelated to the original poster's issue is also hijacking it. We frown upon that in this forum. If you are doing that, please stop. It is distracting us from properly helping the original poster and can be viewed as disrespectful to the original poster, especially when he/she has not done anything to you to merit it.
The best solution is to start your own post in the above example. In the General Forum you can discuss/post whatever you like.
I would like to point out that, in the Virus and Worm section, the free help we provide for all registered members, that elsewhere would cost hundreds of dollars at a computer shop to repair, is done gratis, no charge whatsoever. We do not care if you use a competitors antivirus program, we will still help you.
So, create your own topic, and, guess what, you cannot be accused of hijacking it as you now own it.