@unuxually I'm sorry, but what you meant sa sinabi mong “there’s nothing wrong with criticising” is, I believe, constructive criticism. There's nothing wrong with that, yeah. Pinupunto ng critique ang pagkakamali and then give some advices kung paano itatama.
However, kabaliktaran naman ang ginawa ng gumawa sa rant. She was just actually pointing out the mistakes and “blunders” of some WP Filipino authors. Destructive criticism na ang ginagawa niya. Imbis na magbago at mag-improve ang mga tinamaan, e, hihinto na lang sa pagsusulat. If I were a newbie to writing, tapos nabasa ko yung rant niya, mawawalan ako ng ganang magsulat.
Gaya nga ng sinabi mo, it's her rant. Rant and not criticism. So let's not associate that with criticism. But if it were a criticism, well, ayun it'd be destructive criticism. Pero dahil rant nga, edi rant. It would either be a poison para sa mga pinatatamaan ng nagra-rant or a nectar para sa mga nag-aagree.