Gromit
Your post was a great help. A few of us tried to support the site management over this issue. It's quite hard – as a site admin – to do comprehensive research without trying many computer systems, many browser types and so on.
It's great to see a positive response from the management.
Incidentally, one thing that can help is that if you see the yellow/orange Ally-X-pre55 advert indicating a 50%-off sales, then try to refresh your page as fast as you can until that ad no longer appears.