glad to read you here. I expected your arrival on these message boards later in this year, so your appearance is a great and happy surprise to me.
To talk short about the lack-of-communication complaints - as entitled as they may have been, most of the longtime C@H users should be aware of the fact, that these were mostly the results of the specific circumstances of the project - crew being small, splitted all over the world in different time zones, a very busy main scientist who is involved in many groups and institutions...
And nobody can deny that there were several (unsucessful) attempts made, to fix this problem.
I'm pretty sure that nobody will really think about it any longer, if now work goes on, maybe with new directions and an at least basic communication between crew and volunteers.
I think your list includes the most necessary points.
Imho the most important thing is a better project description, understandable for common people.
Most questions for progress bars, results, publications etc. arose because of the fact, that the people don't really know what C@H does. It is not really explained in Bens "Letter to Cosmology@Home users".
He added some further explanations in the following years, but they are scattered all over the message boards. A new user will face some difficulties when attempting to collect these informations.
Afaik PICO was used in analyzing Planck Data. Maybe this would be a good example for point "proof of impact".
I was really excited when reading the description of boinc2docker on your github (in fact, I'm still excited)! I watched those whole V-BOINC thing since i randomly found a paper of Gary McGilvary in ~2013(?), and i was disappointed when the development went into the virtualbox deadlock.
Guess, i'll have to read a little bit about docker, to be able to ask you smarter questions =)
Again, I'm really happy about your arrival here.