People who want to cool down will stand in front of a fan, so that the maximum airflow streams past them.
Most people think of themselves much more than of other people.
This results in a conflict between individuals that want to "Cool me!", and organisers who want to "Cool us!". It's not the same problem at all.
Energy is neither created nor destroyed, so when someone is rapidly cooling themself in front of a fan, we should consider where that heat goes.
If the fan is blowing into the room, that heat will be added to the heat already in the room.
If the fan is blowing out of the room, the heat will go outside, instead.
We advertise it as a night of dancing, not a night of standing around in front of fans trying to cool down.
If we can successfully keep the whole room cool, then the individuals won't need to cool down.
If the individuals need to cool down, then they will not be dancing, so we will have failed already.
Of course, there may be non-dancing spectators, those with a 'socialising' agenda, and the person sitting at the (draughty) door to take in money etc.
They might not appreciate the same degree of cooling as the dancers, but it will be difficult to create a separate, different micro-climate for them, so they may have to 'dress warmer'.
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