MINE TOO!!!! should we root? AND MOST IMPORTANTLY HOW TO DO IT CORRECTLY, WHY WON'T HTC © do it for us #HTC
Because it's self inflicted by your personal phone use. I'm seeing none of it, so it must be something on a user by user basis.
If you're rooted, clear cache and Dalvik.
If not, when you root you're going to clear your phone anyway, so go ahead and start with the first step now -
Backup all you can with Helium Backup from the Play Store, do a factory data reset and restore the backup.
If the problem went away and you'd cleared just the cache earlier, then the problem was the Dalvik cache or an app cache.
If the problem persists, use GSam Battery Monitor or the built-in task list and see if Media is constantly running and at the top of the app list, below the system.
In such a case and you've done the factory data reset, copy all of your media to your pc and delete it from your phone. Go to settings, Apps, All and clear data on Media Storage. Cycle power on the phone and leave it sit alone for 30 minutes.
If the problem went away you had a bad media file and the media server was locked in an endless loop over it.
Someone with a different phone and the same problem last week was getting a 20 GB gallery thumbnail over a bad media file.
And look at the status bar - do you have a constant syncing indicator?
Go to settings, Accounts and see which is having sync problems.
