I wrote a lot of popular web apps in Perl, some that appeared in NY Times and Time mag. I quit around 2010 and went over to php which is easier. Wrote a great app and built a successful software biz around it. I think 2010 may have been when Perl 6 felt hopeless and there was no clear leadership or direction in the community.
Mod_perl was the sh*t back in the late 90s for super high performance web apps on Apache. Then Perl stalled and everything else didn’t.
Perl could have been where Python is today if they didn’t take 20 years to waffle about a release that was supposed to do everything and ended up doing nothing because everyone left.