100th Monkey Effect

I always wanted to believe in The 100th Monkey Effect; it's such a great story. But: it ain't true, as you will read if you follow the link. But whatever, here's one I've noted. In Starbucks green straws are provided for cold drinks (in fact the wrappers actually say: not suitable for hot drinks), but first in Tokyo last year and then occassionally in London and now in one or two spots in LA, I notice people using them in their hot drinks. At what point will critical mass be reached and Starbucks notice the phenomenon and launch a special and suitable straw for hot drinks?
And which monkey started it all?
Have a great Saturday.