I know there's no shortage of good one-liner tutorials (your comprehensive collection of links is outstanding though - thanks). The problem I've had with most of those tutorials while working through them was that sometimes I just wanted a solution that did what I needed, and then I could spend the time I saved looking at the fundamentals underlying it. This collection of one-liners is handy to me because I can quickly find a near-fit solution, hack on it to fix my problem du jour, and learn by doing, which works better for me than reading through even the best tutorial.
Curiously, the perl.com Scriptome article you referenced
was written by reformed golfer Amir Karger ... who was
a significant contributor to perhaps the largest
and most unreadable collection of Perl one liners
the Terje/mtv pdf book of Perl Golf. ;-)
You don't want to go there. No, really you don't ...
but if you do, you might also be interested in cog's
eskimo greeting and other secret operators. :-)