Too many ads that cover content in mobile view

[olgerm]

If I look physicsforums site in mobile, then much of space is covered by Google ads. Often some big add comes from top of the page that covers most of page. it is closeable by clicking, but it still disturbs. also very many ads between posts. almoust after every click to new thread big ad that covers most of the page that has to be closed every time. it is not so if I look from PC.