bug#50908: [PATCH] erc-user-mode: Set "+i" by default

[Stefan Kangas]

Amin Bandali <bandali@gnu.org> writes:

> > What do you think of this ERC patch to enable the "+i" user flag by
> > default.  This hides a user from global /who and /names, thus providing
> > (very marginally) better privacy and protection from spam bots and
> > similarly abusive behaviour.
>
> ENOPATCH :)

Oops.  I'm not at my computer this weekend, so I'll send it later.
Basically it just sets erc-user-mode to "+i" and adds a comment that
explains the "+i" flag.

> This sounds like a good thing to do.
> Other folks reading emacs-erc@, what do you think?

IIUC, "+i" is the default that irssi has:
https://irssi.org/documentation/settings/#usermode