Nothing. We created Capture.it to be a safe place for memories to be shared. If we are to use data, it's only for internal purposes like to make recommendations of public events that may be of interest to you in your geographical area. This is planned for a future release of the platform in 2018.
And, if we do plan on using data we will share our intentions prior to doing to. Capture.it is a subscription based platform on purpose - we do not need to nor plan to sell any data as that is not our business model and never will be.