We've just had a discussion about this on staff, because stuff like that is frankly ridiculous and the ads are a frequent complaint. We don't want people to be forced into using an ad blocker simply because of how bad the ads are, when they would otherwise be happy to keep their ad blocker turned off in order to help support the site if they knew they'd only be shown reasonable ones (in terms of size, placement, etc.).
Thanks! I'll keep clicking the close ad button for now. There's a huge empty space on the right for ads :) I don't mind them as long as they don't cover 80% of the information on the screen.