What a fascinating concept. You might hit the limit and then ask people not actually reading to unsubscribe to open spots for new readers.

The public incentives of social media — likes, hearts, reblogs, follower counts, the metrics that platforms enthusiastically refer to as “engagement” — didn’t exist in email, and especially not on TinyLetter. The platform itself had no built-in recommendations or ways to self-promote, quashing any aspirations for virality. Even subscriber counts were originally capped at 2,000. You couldn’t even pay to raise the limit.