The USERLEN ISUPPORT token lets users know how long the ident can be. Do we wanna expose this?

Today in #limnoria-bots we found that MoobotFactoids supports replacing and regex-replacing existing factoids. This isn't documented in the plugin README, so it's not obvious at all for folks new to the plugin.
Syntax seems to be:

• no x is y - replace factoid x with content y
• x ~= s/y/z/ applies regexp s/y/z/ to the factoid x

I assume that this is covered in the original moo

I'm having a very hard time (as a Rust beginner) figuring out how to hack in an SASL connection with url-bot-rs, and I haven't found a dependent crate that actually uses SASL, to use as an example.

WeeChat lets you specify the SASL mechanism. A similar config option could be used here to state whether to not us

This is a limitation because $x: and $~x: are already allowed.

IRCv3 Specifications

IRCv3.1

Base Extensions

• Capability Negotiation
• multi-prefix Extension
• sasl Extension

Optional Extensions

• [account-notify Extension](http://ircv3.n