First of all, I want to say that putting up a sign in a temple has violated the teachings of the Buddha.
It is recorded in the scriptures that the Buddha said that ordinary people can believe it, but monks can't believe it.
Since monks don't believe, they shouldn't put up signs in the temple. It is recorded in the scripture that the Buddha said, "Knowing the three professions is the bosom." According to the Buddhist scriptures, the Buddha said everything, because ordinary people should be liberated; Some people want to be free. What do you want, just follow what the Buddha taught you, and you can get what you want. If we can't do this, Buddhism will not be liked by all beings.