I have to say, the original poster has succeeded in his goal it would seem.
This has turned in to a rather fun debate on some of the things we should and should not be doing.
I don't think we should be dictating to pubs but I do think we should educate them and leave it up to them.
At the end of the day, if certain pubs start taking notice of proper serving temperature and start doing it correctly then they might see an increase in trade.
Or it might backfire, who knows?