I was removing inactive friends when I noticed a slight problem...when I click 'remove' nothing happens but if I refresh the page the friend does get removed. Pretty sure though the friend block is supposed to disappear instantly?

It's a similar thing with (un)favoriting friends. It works fine when you favorite someone, the friend moves to the right column. But when you unfavorite someone, the friend will move down a bit, and then jump back up to it's initial place, and stay in the right column. Only if you refresh, it appears in the left column.

It's also having the issue when you accept a friends request it doesnt go away so you try to click it several times so they get a bunch of event alerts.

yes ma'am

Yes, still exactly as described above.