i will always make sure i comment on the stories to motivate the author. i mean being a silent reader is good but sometimes a little gesture such as delivering a good comment or your opinions about the story will be greatly appreciated by the author and the author will know that there are people who read their stories... but maybe it’s just me. and as author don’t feel like you are lacking if people don’t comment, keep updating and try to interact with your readers by replying to those comments and thank your subscribers!