Push notifications are a recurring product design problem: the same channel can drive engagement or drive users away. The source article approaches the problem by asking three practical questions: what to push, what not to push, and how often. The underlying assumption is that notification quality determines whether users keep the channel enabled.
On the "what" side, the focus is on sending messages that are genuinely helpful and relevant to the user in the moment. On the "what not" side, the emphasis is on filtering out notifications that feel repetitive, intrusive, or low-value. Together, those choices feed into the "how often" question, where the article looks for a frequency sweet spot rather than a single maximum number.
Because the analysis comes from one source, there are no conflicting viewpoints to compare. The article is consistent in arguing that notification success depends less on volume and more on judgment: each push should earn its place by being useful enough to justify the interruption.