I do not forward 'catch-all' to anything because, as the tech note says, it is all spam. And, since we are having problems this and last week, the change on June 7 didn't help us.
The overzealous use of catch-all forwarding may have been the root cause for DH gaining a bad rep. But, the result remains: these companies have ~blacklisted DH so all/most/some forwarded mail (catchall or not) is rejected. The question is: how will DH get off the 'bad boy' list at AOL, Yahoo, etc.
On the short term, customers of Yahoo, etc. can switch to someone else. That's not a problem for me but probably isn't great for some.