-1 and then some, Let's be real, CT's in their current environment do not need any extra help; and in my experience, it's harder than one thinks to rebel without notice. Keep in mind T's have two goals, and those are the purpose of the gamemode. T's need to either rebel, or go through the CT's games to get to LR. T's rebelling is a very core feature of the gamemode. They are expected to do one or the other. As it stands, in most cases CT's have no problem countering rebellers, and really only face difficulty on select maps.
Count is not so much of an advantage than it is convenience.
I bet we'd get less chat spam and fewer miscalculated free kills.
Make no such mistake, it IS an advantage, Because if a T DOES MANAGE to sneak away without getting spotted, that T now is at the mercy of this command which reveals that the jig is up before they even do anything. This command already when used properly screws over the crafty T who managed to get away unseen. Without this command, these sneaky T's would stay sneaky more often than not. As such that intelligence that someone's escaped without any effort other than typing a command or even pressing a single button, is in itself advantageous.
Giving this to all CT's would reduce rebelling down a MAJOR percentage, to the point of why even try in the first place, as the only other way to rebel would be to get lucky and stab a CT. Not very practical most of the time. In essence, it would all but get rid of such a core part of the gamemode.
This does nothing but stack the favor even further in the CT's favor; whom of which are armed, against generically unarmed T's.
Further; there is a reason why there is a warden anyways. Imagine if EVERY CT was a warden. It would be so chaotic, everyone giving orders to everyone, countermanding and superseding eachother. The warden is there to provide order and direction to everyone playing. The tools they have are for that purpose only, if everyone had them imagine the amount of chaos. Random CT's giving ST to rebellers, spamming special rounds, talking over everyone, Having extra armor and hp... CT's baiting other CTs by taking T's past each other without knowing. I'm sure people could find all sorts of devious ideas if everyone had every command. But; I digress, as that is not what your asking.
However, the slope is slippery. And frankly, even if you don't agree or think it would be overpowering, Already people have suggested loopholes and exploits. What if a CT just bound this and just constantly spammed it?
I can't fathom any case that makes all the potential issues that this creates worth it.
Micspam? We have admins around who can deal with people spamming asks for counts, and while it isn't always perfect, that is what we volunteer for; To help.
If you think you can find a scenario, any scenario that can credit your suggestion and argument(or position, not as in verbal battle/fight); then maybe this has more ground to stand on.