The Pressible Team is aware of the increase in spam comments in 2014 (and the particularly bad spikes this week and back in May). We are currently evaluating and implementing ways to fight back and keep spam at a minimum while maintaining as much of our current feature set as possible.
Comment spam is a feature of the larger WordPress community and, of course, the web at large. Like many publishing communities, we want to make Pressible sites easy to interact with—by authors and readers. We are trying to balance the opposing challenges of “comment moderation” and “spam moderation.”
Until this year, Pressible authors and administrators were able to fend off limited amounts of comment spam while comments were unmoderated (were posted immediately). We believe that the benefits and risks of this approach outweigh the occasional blight of spam that must be removed. If, however, we are unable to reasonably control the spam across Pressible going forward, we will consider a different approach.
Please let us know via a library Support Request if you have any thoughts!