Over the years, I have tried so many things to limit comment spam – yeah sure; you can go and install Akismet, or AntiSpamBee – they are great products and seem to do a great job, if you don’t mind reviewing your spam messages from time to time to rescue real comments.
I recently gave up on all spam plugins – I have effectively turned all my anti-spam products off and moved to something a little more simple! Since installing this plug-in, I have gone from ridiculous amounts of spam to zero so far (I just don’t believe it, surely something must be broken!? I assure you everything looks OK to me so far). Do yourself a favour and check out this plug in! (here’s the link to the wordpress.org page) It works OK with [edit August 2017] WordPress 4.8.1.
My spam content is now zero, and real comments come through – It does seem to be working (for now). It will be interesting to see if someone decides to target my site now – We shall see.
[UPDATE August 2017] – Still no spam since August 2013! Working with WordPress 4.8.1 – This plugin is awesome!!