title: Ruby on Rails: Spam Gem
body: <p>I'm looking for a gem for my app that will prevent spamming the comments section. </p>
  
  <p>So, Rails validations work fine, but when a user would spam and type the same letter say 1000 times-it would go through and obviously mess up the entire app and css structure.</p>
  
  <p>Any suggestions?</p>