[anonymous344]

biggest problems with trello, having using it 14 years or so - if user deletes card/list/board it's gone forever for whole group - i want to share board with secret link(no login) but this user cannot have rights to open any card, maybe just comment. Not available at all in trello

[xet7]

WeKan https://wekan.github.io has CommentOnly role, that can be set by BoardAdmin by clicking at board right sidebar board member avatar, or with API:

https://github.com/wekan/wekan/wiki/REST-API-Role

https://github.com/wekan/wekan/blob/main/api.py