Have you considered opening a business account for your scrabble tile business?
No BPF will be added to your listings and you will be able to use stamps to post.
You could keep your private account to sell personal, unwanted. pre-owned items.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)