I found this kind of technical error sometimes in posting Japanese in the post. If my post had a sentence (or paragraph more correctly) fully in Japanese characters, then when I posted this post, everything in the post will become invisible.
Though, if you reply this post with quote, you may will read it though the quote in the reply. But that doesn't help because not all readers going to press the Reply with Quote button just to see what you wrote.
Although I found an alternative way to solve this problem, which is to code tag the Japanese paragraph. But still error is an error. Could someone solve this technical error in Bulbagarden forum?