I agree with you completely that it might be a little too much of an overload if there were dozens of assigned users to it for one brand. That’s why its good to find a nice balance where you have more than one person (to get different ideas, viewpoints, and personalities) but not too many people so your followers are struggling to figure out who said what…

From what I’ve seen, a lot of the companies using it are keeping the number of people assigned to it relatively low, like @MSWindows, @CoTweet, and @TwitterAPI to name a few. I like how they (and us) are showing who sends each tweet. Larger organizations such as @ford, @cocacola and @pepsi aren’t using CoTags (CoTweet signatures) to identify a particular tweeter, but obviously use it for collaboration in managing the Twitter account.

I like how you guys are using it. It’s easy to tell when the messages are coming from you, Mike, Jason or Glenn and can see the different personalities. If a company used it with 50 assigned users, it would be too much of an overload for me. My two cents.