Do you agree with them all? Are we missing some?
Let us know what you think.
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Make it clear when you are an attendee (and are not allowed to speak)
Background: I was trying to present a session, but the other end were unable to hear me speak and I was confused why.
The reason ended up being, that the person who set up the conference, set me up as a attendee, not a presenter. A attendee is not able to talk.
Give a messagebox informing the user of this, rather than disable this option.
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Figure: Never disable this option - instead give a message telling the user that he is an attendee without permission to speak.
Acknowledgments
Adam Cogan
Lei Xu