I know a problem that I’ve been told about Starbucks, that a lot of people are Nichshol in. They sell this cookie and people found out that it’s kosher. The store even hangs a Tzeteil (paper) about the hechsher. So a lot of frum people eat it. So what’s the problem? It’s treif -the cookie- because what they do is heat up their cookies beforehand to make them crisp in the treif oven and rewrap them. Noone asked except for one person I know. So everybody eats the cookies because they are “kosher”!
I wouldn’t underestimate a chusuver hechsher like cRc. You don’t know what goes on behind the scenes.