idea: personal feedback to presenter

[ThomasWaldmann]

have an easy way to give this to presenter:

• some free form text

optionally include (checkbox):

• contact data (from user profile)

if we have some "internal" messaging system, one could also communicate without giving contact data, which might be preferable in some situations to avoid unwanted spam.

can be used for:

• congress presentation feedback
• feedback of a fair booth visitor / establishment of a business contact