The official stance will always be that it's against the rules. No one working for the company will ever be allowed to tell you differently, period. People have been suspended/banned because of JP text in their bazaars/search comments in the past, though this mostly happened to people who were GM'd maliciously by people who didn't like them.

If you want the honest, practical truth? No one is going to care one bit. If you want the official stance? It's against the rules, and they'll never, ever say otherwise.