plebbit
implement crosspost
there are 2 possible ways to do crosspost, either we would have something like comment.link = 'plebbit://p/name.eth/c/
the other way would be to have comment.crosspost = Comment, we put the full comment inside the comment, so the sub owner and mods can moderate it as if it was the original comment, plebbit-js would have to validate the comment to make sure the signature is correct and that it doesnt contain illegal fields.
one possible problem with this is that if you have a chain of crosspost, the comment ipfs becomes large and unbounded, but I dont see a problem with it, a large comment or a large comment chain just wont be possible to crosspost.
another problem is that certain UIs display "crossposted to a, b, c". how would we know this? there are 2 ways, either we only use the subs the user is subscribed to, or we publish crossposts as replies. for example whenever you create comment that is a crosspost, we could simultaneously publish a reply to the crossposted comment, with a link to our crosspost, something like that. this is low priority, we should start with just implementing crossposts first and not worry about how to gather all the "crossposted to a, b, c"
an interesting thing we could add to plebbit that would make it more "twitter like" is that if you follow/subscribe to an author, you dont just see their posts, you also see their replies, and we could make this behavior bypass the sub owner moderation, if the sub owner banned the user or deleted their comment, the sub node would no longer seed the comment, and no longer allow replies to that comment, but the comment author could run a full node, and allow publishing this way, the author profile/post history could be a full plebbit node running a sub, and this way you could be banned from a sub, but still participate in a sub, but your replies would only be shown to your followers
maybe we could design the crossposts to allow this behavior, replying to a post in a sub you're banned in would basically be like crossposting to your own author sub
it would be cool, famous people, or famous subs could "ratio" a post in a subplebbit they are banned in, for example to correct a lie from malicious mods in another sub. It would be more interactive than just taking a screenshot of a post to comment on it.