I think I could say for both the RC and EO that a clear indication someone is not a saint is that they claim to be.
I don't recall that anyone has claimed to be a saint.
I would rather be known, simply ... as a child of God.1 John 3:1 Behold what manner of love the Father has bestowed on us, that we should be called the children of God. Therefore the world does not know us, because it did not know Him.
2 Beloved, now we are the children of God; and it has not yet been revealed what we shall be, but we know that when He is revealed, we shall be like Him, for we shall see Him as He is.
It's a matter of degree, but the point is the same. If the most saintly do not claim themselves saints, then we should presume, or assume, even less.
Humility is a foremost attribute of saints. "Blessed are the poor in spirit..."
Thanks for your reply.