Group collection feature
This function allows multiple members to add images to the same collection.
Invite other people to add to a collection
Go to a collection you have created and below the title click "Add people."
You can invite others by their email address.
If they have a Gyazo account they can join the collection immediately and add their own captures, otherwise they will need to download, sign up, and log in first.
Note: As the creator of the collection you can add or remove people at any time.