"My backup is bigger than your backup" should be our motto
Sandbagging isn't fun when you are a victim, but just like fester said - it's a strategy. It doesn't break games rules and it is a bit harder to compete with someone if you don't know his numbers. During contests - if you see someone monster score, cause he found a golden cpu/card you can mobilize and try to find better and beat him, buy more parts, tests more tweaks and so on but with sandbagging sometimes you think that you are safe, you had won a competition but in fact in last few minutes it appears someone beat you, it can be frustrating but we have to live with that, in fact when everyone is sandbagging - it isn't a problem anymore lol, cause no one knows their results until the end