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Uses Substack subdomain (grossehalbuer.substack.com). Migrating would require subscribers to re-subscribe at a new address.
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News from freelance artist Stefan Große Halbuer aka Plastic Pen 💜 Everything about my art, freelancing, upcoming drops and more!
Data updated 3 days ago
Notes from Exile
4K subs
Mapas Milhaud
4K subs
《人文中国》Humanities China
4K subs
0%/wk
Avg Likes
9.0
Engagement Rate
0.22%· ~9 likes + comments/post
(comments + likes) / subscribers
Quality Score
British History
5K subscribers
Engagement vs Culture
0.22% engagement rate
See Letters from the Plastic Pen's score breakdown & category ranking
Quality sub-scores, category percentile, and engagement benchmarks
See full analysis freeUsed by thousands of newsletter operators and advertisers
400 paid
Weekly Growth
N/A
Paid Subscriber Retention
Insufficient data
15 of 30 days needed
Paid newsletter — revenue data available
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MRR methodology, pricing analysis, and revenue projections
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$20–$46
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Tracking started recently for Letters from the Plastic Pen (16 days ago). A growth trend will appear once we have more data points.
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Sign up freePublishing Frequency
Weekly
Last published Mar 11, 2026
1.0 posts/week avg
Culture Pricing
$7.31/mo avg
Below average(-32%)
Monetization Readiness
Already monetizing
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