Startup Idea : Social butterflies

The user signs in and posts his/her activites along with geo-tagging and pics, videos, texts etc in places he/she usually hangs around. The other users in the area will be notified about the activity if it is of their interest and would then decide either to join the original poster or give it a pass. The users will also be able to follow other users in case they want to keep a track and do any activity as a group in future. The user with most followers, activity hostings will earn the status of a social butterfly in his/her area and will gain respect and attention of other users/social butterflies. Social butterflies will also gain reputation of valuable reviewer of services and places like restaurants etc. in their area.