Guides
Guides to stopping signup abuse.
Practical, sourced writeups on credit farming, fake signups and free-tier economics. Code included.
October 29, 2026 · 4 min read
AI credit farming: how fake signups drain your free credits (and how to stop it)
What AI credit farming is, why free AI credits attract it, what it costs, and a layered playbook to stop it without killing your free tier.
October 29, 2026 · 4 min read
Block disposable emails and fake signups in Supabase Auth
Use Supabase's before-user-created hook to block disposable emails, Gmail alias duplicates and risky signups, with a DIY SQL version and a BurnGuard version.
October 29, 2026 · 3 min read
Gmail dots and plus aliases: how one inbox becomes 50 free trials
Why Gmail treats j.o.h.n+7@gmail.com as john@gmail.com, how free-tier abusers exploit it, and how to normalize emails correctly without breaking real users.
October 29, 2026 · 4 min read
How to stop people creating multiple accounts on your free tier
A practical, layered playbook to prevent multi-accounting on a free tier without hurting real users, from email normalization to device reuse and credit gating.
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