Well! I am a Grammar Nazi Hunter!
I hope you realize this is all in good humor...:)
I don't mind taking grammar tips at all...I have an inflated sense of my vocabulary, but I admit, there are certain grammar things I have always had issues with, so anytime I get advice I view it as a plus!
I mean it. Years ago, I had grown to use the word "like" as a crutch, and a painful realization it was for me to have reached, since I especially dislike that verbal tic.
But I had someone I admired greatly politely point it out, and while I was internally crestfallen and embarrassed, I am forever grateful because it made me introspective with respect to verbal communication, and in the end, it really helped me.
So, I thank you for your good natured lesson!