Substack’s rise from 2017-2021 enabled thousands of writers to monetize email newsletters, fueling the creator economy and challenging traditional media—before growing pains, moderation controversies, and competition from Twitter (X) and other platforms.
The Platform
Founded in 2017 by Chris Best, Hamish McKenzie, and Jairaj Sethi, Substack offered simple infrastructure: writers publish email newsletters, charge subscriptions ($5-100/month), keep 90% of revenue (Substack takes 10% + Stripe fees).
No algorithm, no ads, direct reader relationships. The pitch: “Start a publication that combines a personal website, blog, and email newsletter or podcast.”
The Breakout
2019-2020: High-profile journalists left legacy media for Substack:
- Glenn Greenwald (resigned from The Intercept Oct 2020 over Hunter Biden censorship)
- Matt Taibbi (left Rolling Stone)
- Casey Newton (left The Verge for Platformer)
- Judd Legum (Popular Information)
- Matt Yglesias (left Vox for Slow Boring)
Top writers earned $500K-1M+ annually. Substack’s “Pro” program offered six-figure advances to lure talent from traditional outlets.
Growth:
- 2019: 100K paid subscriptions
- 2020: 500K paid subscriptions
- 2021: 1M+ paid subscriptions
- 2023: 2M+ paid subscriptions
The Creator Economy
Substack symbolized the “passion economy”—creators monetizing audiences directly without middlemen. Writers covered:
- Politics: Glenn Greenwald (>50K subs), Matt Taibbi, Heather Cox Richardson (>1M free subs)
- Tech: Stratechery (Ben Thompson, 35K+ paid), Platformer (Casey Newton)
- Culture: Anne Helen Petersen, Lyz Lenz
- Finance: Matt Levine (Bloomberg, but exemplar of format), Margins (Ranjan Roy)
The top 10 writers earned $15M+ combined in 2021. But median earnings were low: only 10% of writers made minimum wage.
The Controversies
Moderation debates (2021-2023): Substack’s minimal content moderation attracted controversial figures:
- Anti-vaccine writers
- Transphobic content (conflict with LGBTQ writers)
- Far-right commentators
Writers protested Substack’s “neutral platform” stance. Some left for competitors (Ghost, ConvertKit, Patreon).
Nazi content (Jan 2024): Outcry over Nazi newsletters monetizing on platform. Substack defended as free speech; critics called it enabling hate.
Competition:
- Twitter Blue (2023): Elon Musk’s Twitter (X) added long-form posts, Substack links blocked
- Medium’s paid tiers
- Ghost (open-source alternative)
- Beehiiv (newer newsletter platform)
The Impact
Substack legitimized paid newsletters, proving writers could earn six figures independently. But the model favored established names with existing audiences; newcomers struggled.
The platform also accelerated media fragmentation: readers subscribed to individual writers vs. publications, reducing shared information ecosystems.
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