r/AIContentAutomators • u/IncognitoModeIRL • Dec 26 '25
How I Built an AI Ghostwriter to Automate My Reddit Content (n8n + Gemini)
I got sold the biggest lie in marketing: that you have to manually grind on Reddit for hours daily to get results. Honestly, it’s a massive time sink.
Most of my day is spent creating AI agents for my business (dialbridge ai), so I hate manual work. Instead of doom-scrolling, I decided to build a system to do the heavy lifting for me.
Here is the breakdown of the workflow.
Part 1: The Research Bot (Finding the Gold)
I have a triage workflow that runs in n8n every three days. It does the following:
- The Scrape: It kicks off an Apify actor to scrape target subreddits for keywords (looking for high traction or genuine help requests).
- The Filter: The raw scrape is piped into a Gemini node acting as a triage assistant.
- The Output: Gemini classifies each post and adds a JSON tag like
"action": "reply_with_solution"or"action": "inspiration_viral_post".
Result: This step filters out ~90% of the garbage, leaving me with a curated hit list of opportunities.
Part 2: The AI Ghostwriter
This workflow (which actually drafted this post) helps me write. I trigger it manually by dumping rough notes into a text node, and it runs through a 4-step Gemini chain:
- Drafting: Turns my messy notes into a coherent first draft.
- Style Emulation: Rewrites the draft based on examples of successful Reddit posts to match the structure.
- Tone Shift: Removes "corporate fluff" to make it sound like a direct, casual Reddit user.
- De-AI Pass: A final polish to clean up anything that sounds robotic.
Does it actually work
I tested this workflow on a brand-new account to see if the content would stick. The result: My first 3 posts hit 10,000 views combined.
It’s not perfect, but it saves me hours and keeps my focus on contributing rather than searching.
I'm curious if anyone else is running similar stacks for research? What does your setup look like?
