Purely a thought experiment here: what do you think would happen if rather than making "ugly people" free to message, you incentivized the message? Pay $1 per message to a hot person, get paid $1 per message to an ugly person.

I wonder if that market would find equilibrium.

Edit: I guess the "purely a thought experiment" disclaimer got dismissed by everybody looking for a little outrage today. This is not a business plan, I just think it's interesting to think about these things.