Ask Mr. Smarty Plants

Oh, absolutely. And then the Wildflower Police, who have been following you with radar and binoculars, swoop up to count and make sure you left the required twelve.

All right, only joking. Actually, what I think you're referring to is a way to help people understand that they should leave some wildflowers, or any other wildlife, for others to enjoy. In other words, don't take everything away. Here is a previous Mr. Smarty Plants answer to a related question (also from Pennsylvania, what's going on up there?) in which we discuss the rules, laws and courtesies concerning wildflowers. Our basic message is that wild plants left where they were growing will continue to be seen and enjoyed by others, will remain to drops seeds, and then reproduce for the future. As long as you are not on private property without permission or in a protected area, certainly it's okay to pick a few wildflowers, but don't pick them all, or destroy them "just for fun." And, as we said in our previous answer, consider growing some wildflowers of your own, and contribute to your own and others' pleasure.