The series is of to a good start. It's rare to se blog posts doing simple i/o without resorting to some parsing framework or other. Learning about the SQLite file format is nice too.
Usually many times a day... Even today which have been mostly meetings.
I had completely forgotten Abuse. I had it on my SGI Indy2 back when the game was new.
I rather like the approach of taking a well known problem ie handling http requests. And solving it using a bunch of different ways. I read in a "ah this maps to that" kind of way.
Oh wow I've written Perl since 92-93. But I don't think I've never seen nor user the r option.
For grouped replacements like that I've tended to localise $_.
Which is pretty much the only useful use of local I can think of.
JSON does lack comments. And numbers that are not 64 floats.