I liked that it allowed me to see what my coworkers were doing in our group chat room which is private by default. It also allows us to have a different signature for each of our departments so we can personalize things without having to change them manually after adding somebody new. You cannot edit signatures once they've been created but if someone changes theirs then any of ours will follow suit. If this was changed then maybe people would be less likely to go off-brand when creating one themselves. This has helped solve some problems with managing multiple groups at work.