Discussion Board. Can I remove the quoted text? Well, I did it in a 2007 solution but then it was installed in a 2010 farm. I believe it should work. First edit the page by appending this at the end ?pageview=shared&toolpanelview=2. Then, do what is detailed in the response's link
How do I set a recurring event on every 8th day of the month? Well in my company, they actually want to set meetings every 10th business day of the month. I don't know exactly why, but I was asked this question. I agree that it's not that common.