Deleting Attachments

I found an attachment I no longer use on this forum and want to delete it.
I click on “Quick Links ‘arrow’” to show the drop down menu
Then “User Control Panel”
Then “Attachments” in the Control Panel box
This is where the attachment is, but I don’t see a way to delete it.

Thanks for the help!

Only mods/admins can delete those.
Contact one of them to help you. Depending on the attachment and its usefulness for other users, they may delete it for you.

Does that mean once the attachment is deleted from my storage it will also be deleted from the posts?
I’ll probably pm a mod to see if they feel it’s important enough to keep.