Privacy note

Version 2026-08-16.

Who is responsible: Kirill Balakhonov (personal project). Contact:LinkedIn.

What is collected and why

• Forms ("join the research" / updates): your email, your optional answers, the offer version you saw, and the UTM tags of the page you came from. Purpose: to reply to you personally about the problem you described and, if you opted in, to tell you when something you asked for is ready. Lawful basis: your consent.
• Usage analytics (PostHog): page views and explicit interaction events only. No form contents, no emails, no session recording, no autocapture.

Where it lives

Form data is stored in a Cloudflare D1 database owned by me — it is never sent to marketing platforms. Processors: Cloudflare (hosting, bot protection), PostHog (aggregate analytics).

Retention and your rights

Form records are kept while the related experiment or update list is active, at most 24 months. You can ask at any time what is stored about you, ask for correction, or ask for deletion — message me on LinkedIn and it will be removed within 7 days. Every update email (if you opted in) will include an unsubscribe method.