Board Thread:Support Requests - Community Management/@comment-30956077-20170106152005/@comment-26402117-20170110010108

I would recommend that your friend makes an account and gets rid of all non-mainpage ads. They can then go to Special:MyPage/global.css to customize Fandom and remove ads further using.

It is better to be safe than sorry. But if any flickering ads are seen, please follow the instructions in the Bad advertisement help page to report them to staff.