I was an early supporter of the Endo concept. After a good start not much happened, for whatever reason.
Now it's Donationware. This says to me "I won't put much effort into it, let's see how many people might be still interested". Not that many, I'd guess, with Vienna + NetNewsWire + NewsFire + quite a few others out there.
I just hope Ecto is not heading the same way. I paid for that as well...