What are some of the worst Real Time Strategy game mistakes you've seen?

[linux.poet]

I've seen some pretty bad ones, some almost comical.

1. Randomly rally attacking the strongest player in the game for no apparent reason, causing him to get thrown out of his alliance and attacked by said alliance until he was destroyed.
2. Failing to put up a shield when warned repeatedly to do so and leaving their sanctuary to be destroyed. If your shield is not up, you need to be paying attention to your sanctuary and if you need to do irl stuff, put up the shield.
3. Engaging in petty disagreements with players who are stronger than you in the in game chat. That's just asking to be wiped out.
4. Gunning for resources versus stronger players. Know your own might and do not attack players that are stronger than you.
5. Slamming your entire army into something and wounding the whole kit and caboodle - usually when this happens, it's a mistake and it's bad.
6. Not using multiple march queues to gather resources from dead enemies.
7. Lying to people and making them angry - you are in a warzone. People can retaliate for that.

Any favorites of yours? Any ones to avoid?

 

[Kane]

The number four point is underrated. Don’t face someone you know is stronger than you, you will lose unnecessarily. That rule even applies to real life combat. Choose your battles wisely.