Ability to have editable columns, updates or notes added to shareable board views

To facilitate the ability for anyone with access to a link or embedded into a website (that is not added as a guest user onto a board) to vote on or update certain columns of a shareable view of a board.
For example - we want to provide visibility to our clients of our current product roadmap plans or feature requests/product improvements and allow them to be able to “vote up” certain features or ideas so we can tailor our roadmap to our clients needs without needing to add millions of guest users to a board.

Similarly, to be able to utilise a shareable board view for polling and getting insights from external parties on various topics. Where a form won’t work, because we simply want their inputs on existing board items.