Anne, you are too kind. If there were an award for unraveling a mystery, the answer is yes. For years on the old mega-sized EarthBox forum, tomatoville forum, thehotpepper forum, and gardenweb forums, I posted under the name deep_roots.
Also, you called me out. I am the Matt Garver who after learning from Professor Bernie Kratky, has posted all over the web and done videos on the Kratky Method.
Most of my Kratky gardening has been with more mainstream varieties that everyone can grow. Note that because of the transpiration effect, that a 2 foot tall plant can easily grow to 3.5 feet in height in the Kratky method. Also, Bernie settled on a ratio of 1 lb of tomatoes taking around 4 gallons of half strength nutrient. Plants are always thirstier than hungry.
Using a gravity fed float valve idea that Bernie designed, I have grown full size cherry tomato plants in 5 gallon buckets which were fed from 32 gallon trash cans of nutrients. I have also grown tumbler hybrid in a 27 gallon tote outdoors, patio tomato in a 20 gallon trash can, and others in 5 gallon buckets and 18 gallon totes using fill and forget. The largest fill and forget was a cherry variety in a 44 gallon trash can.
Here are 3 direct video links for you.
https://youtu.be/7v26bMQH5T4
https://youtu.be/TF2FoEp6kZY
https://youtu.be/NTJLaBrPm4Q