Although I've used that phrase myself in the past, I've come to hate it. Somebody will post it on every HN thread where any form of suggestion has been made.
If it's part of a paragraph of insightful commentary, it's meaningful. On its own it's not, it appears as though the poster chose to copy-and-paste a cliché instead of bothering to tell us what their specific disagreement even is (perfectly reasonable sarcasm from the sibling comment notwithstanding).