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What do you need moderation for that for? All a domain name service needs is some kind of reputable link between two things (e.g. domain name and IP), and Plebbit seems to be using it to reserve community names (so name -> public key, or maybe the other way, I haven't looked into it). The reputation comes from the blockchain, which dramatically increases the barrier for an attacker to change an entry. Instead of a central authority, you have a group of individuals (ETH is based on proof-of-stake now, and I assume ENS is as well) who verify claims before it becomes part of the blockchain.
To me, it's the least problematic part of it, I'm more concerned about communities having owners, and thus communities can die if the owner decides to stop hosting it or decides to dramatically change the rules (or moderators, etc). One of the major points of decentralization is to remove the power of individuals to change/break things, and Plebbit doesn't do that. The most problematic part, IMO, is ties to cryptocurrency, which seems to be its profit motive, so the moment it takes off, the creator gets rich (because they hold a ton of PLEB token), and that doesn't bode well for the long-term viability of the project.
That said, we'll see how it works out. I think it has some interesting ideas, and I'm all for alternatives to the established players in the social media space.
Have you been living under a rock? Just allow me to register plebbbit.eth and make it simple steal user accounts then redirect to the actual website. This, and plenty of other tricks need to dealt with
You could do the same with DNS, nothing is stopping you from registering a similar domain name and doing the exact same thing. ENS doesn't change anything with the attack, it merely exchanges registrars for a block chain.
Except dns requires proper registration, and has a place to report abuse, and those reports are actually acted upon. Moderation here is not preventative, it's reactive.
Stop trying to justify this approach, a blockchain is cool but you're really just monopolizing domain registration
Oh, I think the approach is problematic, I just don't think ENS is a major concern here. I don't think you need DNS/ENS for this kind of service, nor do you need any form of blockchain.
My point is a blockchain DNS system isn't significantly worse than the current system, where we already see a ton of similar abuse. The proper solution, IMO, is to avoid the need for DNS at all.