It means, Play-to(2)-Earn.

Upon bumping your thread, I still see that the other bumps 'daily up' are still published. It's better for you to remove/delete those because that's what the forum rule's say about bumping your thread.

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I see that you have other threads as well but I've checked them out but just in case, you already have a reference in the future to delete the old 'daily up' bumps that you do. Ciao.