A post reaches a fraction of your followers. Reach it a second time and most of the people seeing it are seeing it for the first time. The fear of repeating yourself is almost always larger than the actual risk.
What makes a repost land badly
- Too soon — inside a couple of months, the people who did see it still remember
- Identical — same image, same caption, same hashtags, obviously recycled
- Time-bound — an announcement about an event that has happened
- Too often — the same three posts on rotation is a feed nobody follows
What makes it land well
Pick posts that were genuinely useful rather than merely popular. A how-to, an explanation, a strong photograph — these are as true in six months as they were on the day. A reaction to something in the news is not.
Change the opening line. Not for the algorithm — for the handful of people who did see it, so they get something slightly new rather than a rerun.
Postgust's repeat creates a new post at your next free slot rather than rescheduling the original, so the first run keeps its own record and its own numbers. You end up able to compare the two.
A rhythm that works
One evergreen slot a week, drawn from posts at least three months old, rotating through enough material that nothing repeats within a quarter. That is enough to double the life of your best work without anyone noticing the mechanism.