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I've noticed the opposite pattern in my house. Ever since we bought the place, we noticed that occasionally we would semi-randomly get a very fishy smell coming out of our staircase, and couldn't find the cause.

After putting my google-fu to use, I realized it was the plastic casing of a small light fixture in the staircase that was getting very hot and slowly melting around the incandescent bulb.

I've replaced the bulb with an LED bulb several months ago and I've checked the base of the socket, the fixture, and the bulb after hours of use, and all three are barely warm to the touch at all.

I suppose it may depend on manufacturing quality, or as the OP article mentions, airflow.