There are some apps that can be incredibly annoying, especially if you are popular. Facebook, twitter, and chat apps like Google Now and WhatsApp can keep your phone buzzing and dinging. This can become pretty annoying especially if you have been tagged in a conversation that people won't stop replying to. There is now an Xposed Framework Module that fixes this annoyance. The "Less Frequent Notifications" module by developer "ofmb" limits the number of times a single app can make a notification. You can customize the time frame, and any extra notifications that come in during this time period will be shown but will not cause your phone to vibrate/sound/both. To run this you will need to be rooted and have the xposed framework installed on your device. Head to the link below for the download.
Via xposed repo