I didn't mind the ads in the lower right corner as they did not impede with reading pages or interacting with the site. However, these new ads that consume 50% of the page and block access and use of HSX are killers, imo. They will drive people away from the site. Working my bonds after today's adjustment is painful because the ads appear every time a page opens and I have to wait for the ad to play before I can do anything or even close the ad.
If your ads are impacting usage of the site and making it more difficult to use, then people will stop using the site. If these ads aren't reverted back to their unobtrusive presence in the corner, then I expect we will soon see a mass exodus. The hassle simply is not worth it.