WordPress Comment Spam Prevention
My personal experiences in handling comment spam are limited, as often is the case. Very few individuals have had the opportunity to test the full spectrum of any given type of software or product (a classic example are laptops, of which they are many models and manufacturers). Only an exhaustive trial, in turn, enables to give a good and comprehensive review.
As regards faults or statistics or reliability, these can rarely be accounted for unless a careful, systematic, and prolonged study is conducted. As a result, the suggestion I make will suffer from a relatively narrow scope. By all means, I am not proposing the best prevention methods for comment spam. I can merely add my 2 cents, speaking about my evolutionary experience with a few spam prevention tools, plug-ins, or paradigms. I shall also provide some links to a variety of popular tools that I am less familiar with.