...I was only kidding about the secrets by the way
I like to share tea as well and I'm pretty sure I've always said how much I liked a tea that I've tried.
If you're afraid people are going to empty the vendor's stock, you can always make a preemptive strike and purchase an adequate supply for yourself before talking about that tea.
With teaware, I think it's perfectly fine not to share until you've actually bought it. At the same time, if somebody said they were strongly thinking about buying a piece, but haven't yet, it wouldn't feel right to me to snatch it away. Not that it would be easy to resist if I really loved the piece, though.
Today? No tea so far, just a cup of coffee.