So I always wondered if there was a way to add more tags to your post. Well now there is with Steepshot.
Steepshot will let you add up to 20 tags on a single post. You can only upload one photo though. So if you are a one photo type of poster then this could be for you.
https://play.google.com/store/apps/details?id=com.droid.steepshot
Cheers!