The current wave of spam all posts a very specific type of link:
www.reddit.com/SPAMHERE
Anyone familiar with Reddit knows that 99% of reddit links will come from a specific subreddit, eg:
www.reddit.com/r/frc
While one option would be to prevent new accounts posting links to any site on reddit, a more refined option could be to simply block new accounts from posting links that don't point to a specific subreddit.
Obviously this is a temporary solution, and only fixes the symptoms of the spam-bots, so to say.
On the other hand, I personally have been enjoying the quirky titles it posts...