They appear to sort of forcing themselves in. In the past that was done by periodically changing some of the parameters (like the URL), so it couldn't be filtered out.
Now I don't know.
The one at the top (next to the HTF logo) seems gone, but the one at the upper right is still doing it's devastating "work".
And somehow it also breaks the rotation scheme that's supposed to be in place, because this made-by-a drunken-developer-thing is there ALL THE TIME, once it's back!
(Be sure it's got the attendance of the persons minding this forum. But this fight simply appears to be tougher than everybody anticipated at first.)
Cees