Magento is a store front
Nobody called on you to help. If you don't know what something is, perhaps you could refrain from replying, just like everyone else does. And someone who actually does know can help instead.
I've experienced this before and while it's surely not meant offensively it's not well-thought either. I did earn lack of understanding for pointing that out, too. But I'm also disappointed by OPs not even trying to link.