What is important to pay attention to?1) The audience of the channel should increase gradually, without a sharp one-time growth or unsubscribing. In the first case, the channel's subscribers could be cheated - you need to track the source of the traffic. A dynamic unsubscribe indicates that the channel is not being developed or the topic has changed in the channel, and after that the uninterested audience unsubscribed.
2) If the readers came from channels of other topics, then this is suspicious. For example, an investment channel should have an audience that came from sites with relevant topics. If the non-topic traffic is more than 30%, most likely the channel is not of very high quality.
3) ER (Engagement Rate): It shows the percentage of active audience from the total number of subscribers. Its value should be at least 15% (for channels up to 50 thousand people). Sharp changes in views or their absence should be alarming.
