We get asked this question a lot by engineers and technical founders: "How does it actually work? Is it just a wrapper around the Reddit API?"
The short answer is no. This post is the long answer. It is a technical teardown of the infrastructure, data pipelines, and algorithms that power MediaFast. If you are looking for marketing tips, read our Marketing Playbook. If you want to see the heavy lifting under the hood, read on.
1. The Data Pipeline (The 50k Post Dataset)
MediaFast is a Reddit strategy tool. We ingest approximately 15,000 Reddit posts per day across 850 tracked subreddits. We don't just store them; we dissect them.
- Velocity Tracking: We measure the speed of upvotes in the first 60 minutes. This is our primary signal for 'virality prediction'.
- Sentiment Analysis: We use NLP to categorize comments as 'Hostile', 'Neutral', or 'High-Intent'. This filters out noise for our users.
- Mod Activity: We track deletion timestamps to identify 'Mod Waking Hours',the shift patterns of moderators in strict subreddits.

2. The Ban Prediction Algorithm (Sentinel)
Our flagship feature is 'Sentinel', an algorithmic layer that sits between your draft and the submit button. It doesn't just check for forbidden words; it checks for *behavioral patterns*.
Sentinel assigns a 'Risk Score' (0-100) to every post based on:
- Account Age vs. Activity Ratio: New accounts posting too frequently trigger a red flag.
- Link Density: The ratio of external links to text. (Anything >5% is usually high risk).
- Self-Promotion Frequency: It looks at your last 10 posts. If >20% were self-promotional, it warns you to 'cool off'.