What's additional feature that your most wanted?

I want to develop some additional features for steemit. Let me list these features at first. You can Upvote them. Then I will sort its development time.

• Search personal content (Blog, Posts, Replies)
• Better syntax checking for Blog/Replies editor including multi language not only English
• Personal tag manage
• A good search site for entire steemit.com like google 
• Add person as friends. Then you will get notify when he post new blog 
• Chat with your friends. Will support offline chat message 

Any more additional features that your wanted will be accepted here. I will add it to my development list.

Thank you for your participation.