Am I Being Unreasonable (AIBU) to say that the correct way to introduce an acronym is to write it in full first and then add the acronym in brackets. This way everyone knows what the acronym stands for.
I keep reading threads where acronyms are used without first using the full form and it's frustrating to be guessing or googling when the correct form wouldn't be difficult to include at the first mention, whether it be the opening post or subsequent comments.
AIBU is being used for illustrative purposes only. I appreciate we all know what that means.