I’ve become so frustrated with comments that I don’t ever recommend turning them on unless a client has time to burn deleting them despite whatever countermeasures we can try to install. However, this week I’ve caught wind of a new plugin, so I’ll be giving it a whirl to see if it works.
Based on the work of Mozilla developer David Walsh, WordPress Zero Spam claims to eliminate spam. Link
It’s worth a shot. If you try it, let the rest of us know how it goes.