The Point of a Usergroup

[محروم.كوم]

Besides the fact you can change the permissions of a usergroup, I'm trying to figure out the point of one.

If you can't add a usergroup to a calendar, what's the point besides the permissions of userability?

I mean, why would you have one in the first place. Especially if the aministrator has to organize it himself.

Can someone give me the reasons for one? I might be missing something. But, I feel like there is a link of being able to apply a usergroup to a specific forum and calendar so they get alerts. __DEFINE_LIKE_SHARE__