@protonprivacy why are you asking people if they own any bitcoin in your annual survey? It's a strange question to ask. Furthermore, even if well justified people should be able to skip it.
@jwildeboer even if that was not the intention there was no mention that their request would be published and given that you asked to DM you instead of boosting/staring/replying to your post they probably expected the request to remain private. In any case I don’t see the point of sharing that information without their consent (unless they agreed in private).