Can multiple users share one username/password?

Greetings,

I have set up Membership and it is working great. Thanks for a solid plugin.

My client would like to have a single username/password that will allow users to access a “demo” portion of her site. I have set this up and tested it with two people logged in with the same username, but am concerned about what will happen if 50 or more log in at once.

So, my question: Is there any limit to the number of people who can log in using the same username at once?

Thanks so much.

Tiffany