re: Suggested temperature to serve wine?

The addage of "room temperature" for reds is problematic because that was developed in France, where the average room temperature is cooler than most places in the U.S.

While "the best" serving temperature, IMO, is however you like it best, generally reds should be served about 65 degrees, whites about 50 degrees. Suggested serving temperatures are intended to enhance the wine's good qualities, while quashing it's bad qualities.