Marcus's read matches what we see across accounts. A few specifics:
On API posting: posting through the official Graph API and equivalents is exactly what those APIs are for. It is not penalized as "inauthentic" the way scraping or automation-via-browser would be. Every post goes out through the platform's sanctioned endpoint with your own approved connection.
On frequency: the throttling people experience is almost never "you posted too much," it's audience fatigue showing up as declining per-post reach. Platforms rank by early engagement. Post more often than your audience can engage and each post starts from a worse position.
Practical guidance from what we observe:
- Facebook Pages: 1–3/day is the sweet spot for most, more if the content is genuinely varied.
- Instagram: 1–2/day feed, Reels can go higher.
- TikTok/Shorts: tolerate the highest frequency, 3–5/day is normal for growth accounts.
If you want volume, spread it across more accounts rather than more posts per account. That's what the fan-out is for.