Re^3: A reply falls below the community's threshold of quality. You may see it by logging in. (Acolyte Level=3 needed) Probably for people who are already logged in and still under level 3. It's jdporter's baby and he's adjusting the thresholds from time to time. So it's up to him his to implement this ...
Re^2: A reply falls below the community's threshold of quality. You may see it by logging in. (Acolyte Level=3 needed) So the message should be updated? Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond ...