Yes I have, in fact we've used CryptPad forms for our last few signon letters! I also mentioned CryptPad as an alternative to Google Docs and Google Drive in the "organizing on decentralized social networks" session I did -- see the image for a summary (from https://thenexusofprivacy.net/notes-on-organizing-in-the-fediverses/#additional-topics) @Em0nM4stodon@infosec.exchange's article for @privacyguides@mastodon.neat.computer has a deep dive on the whole suite at https://www.privacyguides.org/articles/2025/02/07/cryptpad-review/ @Olyindivisible@pnw.zone @cryptpad@fosstodon.org