. I'd rather inform people, who might inform other people. Doesn't seem so dumb to me.
I understand what you are trying to do leasha
but perhaps do a information morning at your community centre - write a letter to the local paper, start a public debate on a radio show.

these are much more productive than a post it note you have no idea if it will even be there 2 secs after you walk away

As for cows milk - the effects of cows milk on my DD was terrible and i didnt like the fact i was encouraged to only give it. i used toddler milk and my bub tolerated it much more than cows milk. so it isnt that bad!