How so? First definition I find of glib is "(of words or the person speaking them) fluent and voluble but insincere and shallow", which is mostly what I meant a

How so? First definition I find of glib is "(of words or the person speaking them) fluent and voluble but insincere and shallow", which is mostly what I meant about that answer. There was some sincerity in my answer, but certainly somewhere in the border space of irony and sarcasm, which many people do take as insincerity.