3. It can't be configured to extract phrases. So for instance, if the phrase "breeding grounds" is repeated several times throughout the text, it extracts "breeding" and "grounds" as separate terms. This makes it a whole lot less useful.
[Paul Filkin] That would be a feature of something more complex like MultiTerm Extract which is a tool you can pay for. This is a free plugin carrying out a simple word extraction. We may look at doing something more complex in the future, especially if this is a tool people like.