Arabic to English Other Idioms / Maxims / Sayings

This is from an editorial article discussing the use of religious internet forums, where the author says that people rush to post comments even when they don't have anything new to say. This is the sentence:
فحينئذ ترى تفاعلا عجيبا مع مشاركتك ومقالك ويدلي بدلوه كل من استطاع أن يفك الخط أو يميز ما بين الألف وكوز الذُرَةِ

Literally, they're pointing out the difference between an alif and an ear of corn. Figuratively, does this phrase mean that they are pedantic, trying to split hairs? I notice that this phrase is often used negatively ie لا يميز بين الألف وكوز الذرة - does that mean that they can't tell the difference, ie. they're stupid? By extension, could this (positive) phrase mean that they're trying to show off how clever they are?

My version: "You’ll be swamped by replies as everyone rushes to give their tuppence worth, unravelling your thread and splitting hairs over petty details." Have I got the wrong end of the stick? Thanks!