When I shared a link or request file to someone, not the member. I hope they can add comments to this link, or the documents in this link.
e.g. I shared a folder named "inquiry" to my supplier, in this folder, there are some product photos, I can add some comments to the products because I am the member, I add the product size in the comment and tell supplier write down the quotation in the comment, then we can check fast. But if the supplier is not the member, he can not add the comments.
My suggestion is, the one who get the link, no matter he is member or not, he can also add the comments.
I think this is very useful function.
Customer support service by UserEcho