If you do not invest effort, time and, of course, money in the development of the channel, then all the achieved development may become the last rays of success that you have achieved. In order for subscribers to be active, you need to actively communicate with them. Simply thanking during the video shoot for being active is not enough. It gives the impression that you consider yourself an already famous star who has no time for ordinary people. Even a small activity should not be so neglected.