Unless the Volover was involved, and I dont know if he is, if you think the holier than thou hechsher
There are some good heimishe hechsherim (including but certainly not limited to the Volover Rav), and some almost worthless ones. People need to do their research, and not assume that a fancy symbol with Hebrew words automatically means it’s good.
You’ve identified the wrong yetzer hora here, though. This is not so much about gaavah, it’s more about gelt.
Re: non dairy creamers. I was in the supermarket last night, and the two or three brands they carried did not say NON DAIRY in a very visible place; the product description was “coffee creamer”.
The ones I remember seeing were Nestle Coffee-Mate and International Delight.
Your comment about Oreos is a bit off.
What did I say about Oreos that is off? I think all I said was that the status might change and you need to stay updated.