I know what you’re talking about, Alan. I play t a lot (I join the losing team, which is almost always t since we have more de maps than cs) and when I can’t find the bomb, I’ll say into the mic that the bomb’s not on my radar, so it doesn’t look like I’m just running around like an idiot, haha.
Chris said:
Because most of the time we dont know where it is :/
It’s not hard to find the bomb when you’re dead. If you click through the different views when you’re dead (e.g. first person, third person, “map” view, free look, and that other one), if the “map” view is available for that map (I don’t think it is for a lot of them), you can see where the bomb is. Sometimes the cts might be smart enough to camp it, so if you watch the cts, you might see the bomb in that area. You could always just use free look and look for the bomb yourself. I know you can’t always find it before the round ends or something, but I’m just saying you could still take the time to look. 
I don’t like that the cts will know where the bomb is down if we announce it over tsay or something, but I know it’ll speed up the round; the t’s will know where to get the bomb so they can plant. Or, if they suck or get there too slowly, the cts will kill them and end the round.
Anyway, I’ll be letting the t’s know where the bomb is if I see them running around doing nothing.