##Things to implement sorted by priority (roughly)
- Restriction on number of postings everyday for a single account
- NUKE (暂时禁言或永久禁言） account for violating the wall's rules
- Smart feed stream - raising feed prioity for postings with more likes and comments
- Push Notifications
- Email verification
- Facebook login
- Image and avatar upload
- Personal messages (this can be quite interesting)