Discord will require a face scan or ID for full access next month

But that doesn't meet the requirements which is proof of identity.

As a parent I pay for my child's phone and sim, and thus I have parental controls and I can limit access to discord, or youtube, or porn sites, both on the device level, on the sim card level, and on the home internet level.

I'm all for making parental controls easier to use, if you want to pass laws, enforce minimum standards on companies, encourage or mandate pan-company cooperation (why can't I control my child's microsoft account from my apple parental control page, or an EA account from a steam control page). I'd even be happy with sites being mandated to add say a DNS record saying "this is a site for over 18s only due to $reason", and then I, as the bill payer, can choose to allow that or not.

This is how infrastructure works, and supposed to work, besides the point that servers "die by themselves" which of course isn't true in reality. You decrease the bus factor if this is a problem for you.

> Discord servers don't just go away unless somebody actively makes them to

If all the sysadmins at Discord died and nobody else has the keys, exactly the same problem happens. Discord though surely have multiple backups of the keys and so on, something you too can do when you have your own infrastructure, so overall that argument feels almost dishonest, since you don't compare the two accurately.

> Anything open source will be worse at phishing and fraud / abuse prevention by definition

What? Completely orthogonal concerns, and if your main "fraud-prevention approaches" depend on security by obscurity, I'm not sure you should even attempt to be involved in those efforts, because that's not what the rest of the industry is going by a long mile.

> People want bots (for things like high-fidelity Youtube music streaming on voice channels), and those are mostly Discord-only.

Actually, the further I get in your comment, the more it seems like you don't actually understand what Zulip offers nor what the parent comment is about. Music streaming on voice channels? Completely outside the scope of Zulip...

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I think you have to understand the comment you're replying to a bit better, before attempting to lift Discord above Zulip. They're specifically talking about Zulip as an alternative "for managing the firehose of busy communities", not as a general replacement for every single Discord "server" out there. Yet you've responded to the comment as that's what they've been doing.

And often is there for existing apps, that things like this can happen

So people might take stock of existing apps like Discord that they might want to migrate from

do we really need to do this EVERY FUCKING SERVICE that we would like to use ????