It's to bad this forum has turned into a pissing contest. The original post was on Trushes. They are rairly effective but have there places. Nothing in an RTS game should be banned (except cheating). Attack only in T4? That's like telling the Germans to wait a few weeks before they take over Holand, so that you can build up your army.
Any advantage you can get, exploit it. This isn't a tea party. Rushing can be dangerous depending on the type of player your against. Some defend rushes very effectively, thus leaving you wide open if you fail.
Tactics, not strategy, requires that you do not rush all the time, only if the situation calls for it. If you have slow tech times, don't rush.
Anyway, it's said to see a forum degrade into a who's better mentality