Have you talked to people who have handled trolling and abuse at scale before? I ask because there seem to be some huge holes in your model. 1) Message sending

Have you talked to people who have handled trolling and abuse at scale before? I ask because there seem to be some huge holes in your model. 1) Message sending is already a victory condition If I understand correctly, when someone comments, it's always forwarded to the OP. Many harassers will use that to send vile things to the OP. If accounts can be generated without limit, they'll flood the OP's inbox. 2) Since replies are firstly private, this means others will not have the chance to downvote This deprives the system operator of some potentially valuable signals. Of course they can be brigaded too. 3) Opt-in once and receive a lifetime of abuse It seems like your system allows for individuals to opt-in to displaying replies, but no way for them to opt out. Many trolls will consider it a game to deceive the OP with an apparently sincere reply and then they'll have an unobstructed channel. I'm not even a specialist in these matters. Seriously, there are lots of people who are experts in troll fighting at this time, I strongly suggest you talk to them.