Back when I was using 'hide=', new types of header lines kept showing up
all the time; even when I had two dozen keywords in 'hide=', the
displayed headers *still* could end up looking bloated.
So I switched to 'show=', and no longer had to worry about 'Errors-To:'
From my config file:
| # Do not normally display these headers
| #hide=Path Newsgroups Approved Message-ID References Received
| # Normally display only these headers
| show=Date From Organization Subject
[This uses a minimum of "real estate" on my screen. If I want to see
a keyword value that is not shown, I just use the 'V' command. For
those occasions when I do so, I've added a number of 'color header-'
definitions to my config file, so that "significant" header lines
(for instance, 'Newsgroups') can be quickly located visually.]