I think you should've just had your status/chat reset and only warned if you kept doing it. It's clear that you weren't using inappropriate language based on what you said. This points more towards silly/attention seeking behaviour which might be considered inappropriate too, but idk.

I'm not one to judge whether or not it was fair. You might have been persistently doing it, who knows - but it was the admins discretion and take this as a lesson not to attention seek in the future.