So your view on vinegar cleansers changed after the marble disaster. What was the first sign something was wrong? A dull patch or actual etching? I always assumed vinegar was the harmless hero of DIY, but it sounds like it's more of a frenemy to natural stone. Did you try to fix it, or is the countertop permanently memorializing your mistake? Genuinely curious how widespread this knowledge is, since vinegar solutions are touted for everything.