Hmmm. Not sure if that is on purpose, but I don't suffer from that; I can read code I wrote in Perl 20 years ago just fine. I'm not even sure how you would write Perl code like you suggest. It looks noisy sure, but once you know what it means, how is it hard to read?

I guess if you do deliberate golfing/obfuscation you can make anything unreadable.