I don’t know and I kind of hate the term “loyal” applied to commercial and / or attention capturing domains. There can’t be any reasonable expectation that someone who bought your product once (either in cash or attention) owes you their attention and / or dollars in the future. If the answer is anything else than do your best work EVERY. SINGLE. TIME, then I think we’ve jumped the shark as a species.
Tiger Riding for Beginners
Traveling Poet Philosopher & Occasional Wiseacre
Tiger Riding for Beginners 
It is a bit duplicitous because subscribe sort of already says loyal.
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