Allow 'X' number of Apps per User
SMC should allow 'X' number of Apps per User. With Exception of the Apps in the Blacklist, alls Apps can be installed.
For example Setting the maximum number off allowed Apps to 20 will block App Installation once 20 Apps have been installed by the user.
A. Khan commented
App Reputation will not help us. We would like to Limit the no. of Apps. This would save space and all Junk Data installed by apps in Addition to minimizing the possibility of malware.