Therefore, this time we decided to compare each SNS from the following points of view.

a. Is a confirmation screen displayed when reposting?

b. Can you quote?

c. Can you do Emoji Reaction?

a. It has been adopted by Mastodon and Alt-Right SNS. It seems that the purpose is to prevent reflexive Reposting.

b. Mastodon and Farcaster cannot. Also, Nostr is divided into clients who can do it and clients who can't.

c. It is available for Misskey, Firefish, Pleroma, and Akkoma. Nostr is also divided into available clients and non-available clients.