I never participated in the Perl golf on account of me being totally lost or the Perl programming challenges of yore, but I was pretty active with the Pull Request Challenge when it was going. I got a lot out of it and I strongly encouraged any Perl programmers at $WORK I happened to be mentoring at the time to get involved. Some did, and it was very beneficial for them as well.
In any case, it's no PRC but it looks like the PWCs have been active for quite a few months. Not sure if this is news, but it is new to me. And I don't see how it's fake even tho I found it on leddit, so here you go!
Update - PRC is back, it seems!! Pull Request Club covered in a lightning talk, Kivanc Yazan - State of Pull Request Club - Lightning Talks - Day 2.