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A user is defined by an irccloud account. Each irccloud account has a unique ipv6 and unique "user" name when connecting.

IE: sid655585@<unique_ipv6>

or: uid555512@<unique_ipv6>

s = subscriber, paid member

u = unsubscriped, free member.

It's possible, of course, to use this service to register many names and launch a spam attack using it. But, in that case you can just block all `u<star>@<star>.irccloud.com`[0] (assuming you can rdns properly)

Like I said, I'm not a super large advocate of irccloud, but just as webchat passes on the originating IP via cgi module extensions, irccloud fixes problems with abuse for operators.

I know this, because I have been running a large irc network for over 10 years.

[0]: I tried everything to make asterisks appear, but hackernews is doing something funky:

    u*@*.irccloud.com



Howdy! Yep I'm aware of all of that. I'm sorry for perhaps not being clear enough in my original comment.

You allude to a problem by suggesting blocking u*, these accounts can be created when the old one is blocked. Even subscriber accounts can be created at will & higher cost, though are likely less of an issue.

There is a problem that irc.example.net can't say "These users all seem to be originating from this single open proxy, lets block it." They need irccloud to do that.




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