GroupMe could be awesome, but it's lacking so much it drives me crazy. Mostly within the calendar. Why no option to create a recurring event? Or copy/paste a past one? Or, even just review past events? Then, the RSVP count. Why can't the creator adjust the RSVPs for those invited? Why can't you RSVP for more than one, ie, add children to the count, include a partner, etc. The guest count as is is basically worthless. Within the main chat, I dislike how you can't delete a post, or edit.