Yeah, SHH has become almost unusable on mobile. When using the forums, every single page gets completely covered in an ad that has a delayed close button. And the mobile version of the forums is terrible, so that's not much of an option.
The worst offender, however, is the front page. I literally cannot view news articles on mobile anymore because the full screen "ads" that appear redirect the browser to scam sites that claim "you won a free iPad". Using the back button doesn't work as it just cycles through the scams.