Everything here is arranged around not being confidently wrong.
Vera looks things up before she answers rather than reciting from memory, and every answer carries the article it came from, so a member can check her. Sources show their publication date, because a consumer-rights article that was right two years ago may not be now. Ingestion had to be rebuilt around how long real legal documents actually take to process, rather than how long we had assumed.
Then the unglamorous half, which is what actually decides whether people trust it. Prices that parse correctly in every market. Translations for every surface. A refusal to answer what the sources cannot support, and a human in the loop on anything carrying real risk.