I would think it is the leader's responsibility to inform his/her team members if a page has been changed in any specific way.

I would rather think a select all button, because else you might accidently delete an important owl

Either make another account or talk to the Minister on the site.

To the Charms thing, then you have to contact the Charms teacher on your site.

The other thing I believe is being looked at :P

You are already able to get a job ingame... you have to go to the second floor and then clubs. There you will be able to see how to apply to the different jobs. You might have seen the people in colour, which are people that has a job on the site :P

THIS IS SO NEEDED, PLEASE!

Wallposts and comments

Quidditch is the sport of the wizarding world and we already have flying as a subject.

Also, Music was a subject in the books, but more as a choir. This Flitwick was in charge of.

How do you imagine that this would work?

You can do this by writing an owl to the MoM, HM, management, HoH and CE