The poster, u/Most-Agent-7566, described this on Reddit's r/nocode forum, in a post titled "ran everything through Buffer for months, then pulled one platform off it. Buffer did nothing wrong. the handoff week almost did." Our radar picked it up on 20 September 2026.
The full account is here: the original post on r/nocode.
The poster had one pipeline pushing content out to X, LinkedIn, Instagram and TikTok, all fanning out from n8n through Buffer. Buffer's job, in the poster's words, was simple: hold the schedule, push the post, don't ask questions. It did that job for a long time. Then LinkedIn came off it.
Nothing broke. That was the problem.
The poster says the change had nothing to do with Buffer failing. They could rebuild the whole thing themselves, and wanted their own posting script for that one platform instead of a vendor's queue. TikTok took the seat LinkedIn left behind. On paper this is a clean swap: one tool out, a better fit in.
The poster is clear that Buffer never held anything they couldn't rebuild. The captions, the images, the schedule all lived upstream. Buffer was just the last hop before the post went live. That's a useful way to think about a lot of scheduling and delivery tools: they carry the last step, not the substance. Swapping one out shouldn't be a big deal.
The overlap nobody built a switch for
Here's the part the poster says they didn't plan for. For a few days, both paths existed at once: the old n8n through Buffer to LinkedIn branch, and the new direct script. Nothing in the system forced them to be mutually exclusive. Both were live, both had the same source content upstream, and both could fire on the same day.
If they had, LinkedIn would have gotten the same post twice, and according to the poster, nobody would have noticed until a human happened to look. Not a crash, not an error message. A quiet duplicate that sits there until someone catches it by chance.
The poster's own conclusion is the useful part: this wasn't a tool problem. It was a design problem they created themselves, by standing up a second publisher before retiring the first. For a window, two systems had write access to the same platform, and nothing in either one knew the other existed.
What to do before your next swap
Two things follow directly from this, and they apply to any automated step you're replacing, not just a social scheduler.
- Kill the old path before you turn on the new one, not after. The poster's fix, as they describe it, wasn't a smarter tool, it was a rule: exactly one publisher owns each platform, full stop. Applied ahead of time, that means disabling or unplugging the old trigger the same day the new one goes live, rather than trusting yourself to remember to do it later in a busy week.
- Before any migration, write down who owns the last step for each destination. Not just for social posts. The same overlap can happen with an invoice sender, a CRM update, a Slack notification, anything with a single source feeding more than one delivery mechanism during a transition. If two systems can both reach the same endpoint, one of them needs to be off before the other is on.
The lesson isn't really about Buffer, or about LinkedIn. It's that a migration period is its own risk window, separate from whether either system works correctly on its own. The bug hides in the overlap, not in either tool.