I observed the following things during construction/testing which warrant further experimentation:
The connection between the tank cap and the valve had a slow drip leak. I tried applying some teflon tape to the valve threads and also backed off the connection so maybe 2 or 3 threads remain...
Future internet chicken historians may be interested to learn that I have replicated this design with great success. I used the same tank, chicken nipples, and valve from Amazon. I also used the following hardware from Lowes:
Mueller Proline 3/4-in x 1/2-in dia Black Iron Bushing Fitting...
I've built a tube based watering system based on a design by Shuttergirl. The only significant difference is that I've placed the water tank inside the shed which is part of the coop; the original design places the water tank on a stand outside in the open air.
The shed has minimal ventilation...
Fix confirmed! I can now see comments while logged in, as well as a more explanatory message "(You have insufficient privileges to post comments.)"
Thanks for addressing that bug and providing the additional context about new user capabilities.
I wonder if the threshold is affecting me as well; I created an account specifically to ask questions about and provide feedback on an article[1], and while I was able to start private conversations with the author, I am unable to even see the article comments while logged in.
[1]...