Think of the forum as a resource where almost everything you can think of has already been discussed. Using the search bar can get you accurate and helpful answers to your questions.
Except for a new article or recent happenings withing the crypto network and the economy at large that affect or have to do with cryptocurrency that we must share or create a new thread about, this is because it has not been discussed before, while the use of the search engine of the forum will give a number of related threads and discussions made on that particular area and this is necessary in other to avoid spamming up the forum on areas that have already been discussed.
Using the search bar is yet the easiest way to search for a thread or post which is related to your area of interest. For newbies, it is always best to use the search bar before attempting to create a new thread since most of the information we seek have been discussed one way or the other on this forum. All you want to do is to take your time and search for the information you require without having to create a new thread.
Though I find the search bar useful couple of times including the revise search bar, but what has been more effective to me is when I make use of the Google search engine. I type whatever I'm searching for on the search bar on Google search engine then end it with 'bitcointalk to narrow the search down to the forum. Most of the occasions, it has proven to be more effective to me and I will advise others to try this.