I know that is the right thing for some people.
With the young man my husband taught, there were very specific things you could do if you wanted some excitement and to see chairs being thrown about the room. Part of putting it out in the open was to explain that purposefully setting him off was not going to be tolerated. No one could say they didn't know.
I think you can build a climate that is accepting without disclosing dx...but in some cases people do find that disclosing is more helpful than keeping it hush hush. I think it depends on each situation. And privacy is the default setting, disclosure is optional.
