The problem
The blameless retrospective is a specific discipline. It originated in Site Reliability Engineering and spread to teams that want to learn from failures without creating a culture of fear. The core rule: findings focus on system and process factors, not individual blame.
Running one on a whiteboard is effective — the shared space keeps everyone in the same frame. The challenge is documentation. After a blameless retro, you want a document that future team members can read without being able to infer who caused what. But someone has to write it, and writing retrospectively from a photo of the board is where the blame can creep back in through paraphrase.
BoardSnap reads what's on the board. If the board is blameless, the document is blameless.