.note
People should be able to leave and echo pre-recorded messages, e.g.:
<user> .note why https://example.com/whynotboth.jpg
-- Notice(bot): Note "why" saved.
And later:
<user> .note why
-- Notice(bot): https://example.com/whynotboth.jpg
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information