Regardless of what the AHA does with respect to TT, I am unsubscribing from it. I've skimmed it when it appeared in my mailbox but find it very disconnected. For example, if I missed the question asked on one day, but read the response the next day, it's hard to know what was originally asked if the original email is not included.
Ever since the forum was launched, I've seen TT declining in posts, and sometimes would go days without seeing one.
I am using the RSS feed for the forum and I see every post in my email. I then can scan the post, deleting the ones I'm not interested in and open the ones I am.