Employees at all the major online genealogy database providers spend a lot of time and effort watching how users perform searches on the site and analyzing the results. The purpose is to learn and to make future adjustments to the site to improve search capabilities. Those who monitor and analyze users say they have noticed that genealogy newcomers typically perform searches in a very different manner than do the "old pros." I suspect the experienced users typically end up with more productive results, although no statistics are available to prove that assumption.
Genealogy newcomers typically search everything at once. For instance, when looking for records on a particular ancestor, newbies typically enter the person's name into the search field and then search through everything at once. If the person has a rather unusual name, that might work. However, most of the time, the newcomer receives hundreds or even thousands of "hits," can't filter out the ones of interest, loses interest, and then goes elsewhere.
In contrast, the experienced genealogists usually FIRST search for the smallest piece of the many databases as possible.