title: How to decode unexpected strings from users?
body: <p>I've published an app, and I find some of the comments to be like this: <code>&amp;amp;ETH;&amp;amp;nbsp;&amp;amp;ETH;&amp;amp;micro;&amp;amp;ETH;&amp;amp;ordm;&amp;amp;ETH;&amp;amp;deg;&amp;amp;ETH;&amp;amp;frac14;&amp;amp;ETH;&amp;amp;micro;&amp;amp;ETH;&amp;amp;acute;&amp;amp;Ntilde;</code></p>
  
  <p>I have googled a lot and I cannot decode it so that the comment will not be shown this way. This is the way it is stored in database; it can be in Cyrillic, but I could not decode it as well. Any clue on how to understand this kind of comments?</p>