If the definition doesn't matter, better to use a more generic term than a more specific/cryptic one.

OK. Thanks for the informative post. Don't want to discourage you from more.

I agree with you.

It's also pretty easy to figure out what you're talking about from context.

It's the second post in which he did this. And how should anyone know whether it's important to know what it means without knowing what it means?

I'm of the opinion that the guy or gal is giving us valuable information so let him rip instead of asking him to change stuff. If we can't google a simple acronym with the right context which we already know, we're on the wrong site.