Yes, please pick those low hanging fruits wherever possible. If you do and I have to maintain your code later I'll send you a bottle of your favorite dram out o

Yes, please pick those low hanging fruits wherever possible. If you do and I have to maintain your code later I'll send you a bottle of your favorite dram out of gratitude. But the article (and my criticism) is about the rather high hanging fruit of mathematical purity - of which "side-effect free" programming is just a side-effect (pardon the pun).