After a consumer opts into receiving your emails, I assume they’ll be somewhat active. During the initial weeks they’ll open, click, browse your website, and maybe even convert. However, it probably won’t take long for them to lose interest. They’ll delete without pause or filter into a subfolder for a rainy day. They may come back briefly when a compelling event motivates them to find your most recent offer or a reactivation campaign lures them in once again, but the pattern will repeat itself. They’ll get bored and disengage all over again.