No offense to you, but this thing you did makes me cringe.
Regardless of the intent of the email, and how much you want to HELP, that sentence automatically puts me off, and from that point on, I could give a fuck about what you want and why you want it.
And don't assume that just because I don't USE a particular stylistic technique, that I don't know what it is. I'm not a fucking moron.
NOT a professional designer, but professional enough not to tell you to fuck off for being tactless.