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Strategy7 min readDecember 4, 2025

Cross-Subreddit Analysis: Finding Universal Problems

ProblemFirst Team
Community Analysis Experts

Connecting the Dots

The biggest opportunities often sit at the intersection of communities. A problem discussed in r/freelance might also be present in r/smallbusiness and r/accounting. Identifying these cross-pollinated pain points reveals market segments with shared needs.

The "Uber for X" Phenomenon

By looking at how different verticals describe similar problems (e.g., "finding reliable help on short notice"), you can identify universal needs that can be solved with a platform approach. This is how horizontal SaaS products are born.

Validating Market Size

If a problem exists in only one niche subreddit, the market is limited. If it exists across five related subreddits, the Total Addressable Market (TAM) is significantly larger. Cross-subreddit analysis is a key tool for TAM estimation.