The lack of understanding of copyright on HN does astound me, however.
This isn't a case of convergent design (OpenOffice vs. Microsoft Word), this is identical word-for-word with a simple s/room/dataroom:
> When enabled, folders uploaded to Rooms will be mirrored into 'All Documents' with the same structure. When disabled, all documents will be placed in a single folder named after the Room in 'All Documents!
> This action cannot be undone. - All documents and folders will be permanently removed - All links and viewer access will be revoked - All analytics, audit logs, and Q&A data will be lost - Group permissions and branding will be deleted
Those are clear copyright violations.
Similarly, trade dress and trademarks are related but different, and in USA most Trademarks™ are not Registered® (although to get ® you generally use ™ along the way), and most trade dress is not either.
See also:
- clean room design: https://en.wikipedia.org/wiki/Clean-room_design
- trade dress: https://en.wikipedia.org/wiki/Trade_dress
Amusingly, the packaging of a dress is trade dress, but the dress design itself isn't protected.