I have a problem with the poll answers because the word "adequate" is vague. It should not be just defined on how large you print or what size monitors you have, what size files you send your photos as, etc. Adequate can be thought of as a measurement of one's expectations, and expectations can change over time as technology and competing systems change.
I used to think that I did not have to have air cond or auto transmission in a car when I was younger. Later, I thought I did not need all wheel drive or traction control, and until recently I did not think I really need GPS navigation or Bluetooth. The same thing happened with my cameras. I did not care about AF or ISO 1600 in the 90s, or higher than 5 MP in the 00s, and even when I bought my first M43 cameras, an EPL3, I dreamt of and thought I only needed at most the IQ of the GH2 sensor, and its video specs. How expectations changed and hence also what is adequate!
Although I bought into M43 for adequate quality and performance in a compact size, my expectations of what is.adequate changed with the times, as AF, IS, sensor, EVF all got better. Today, due to the clearly better sensors in all other competing systems, I found what was adequate IQ no longer adequate now. No, I haven't forgotten why I got into M43 and it was to get adequate performance, but I need more now. So, I have to say that it would be better if you have another clearer answer like "competitive performance" instead of adequate performance.
Why should I care if others using a camera in this class has more DR, higher ISO etc when I can do the same things as before? Well, we live in a competitive world and often we are competing for business with our work, or competing for photo prizes, trying to impress other photogs... And it does not help to be disadvantaged due to less tolerance of errors, more missed shots etc due to equipment that are not keeping up with others or not adequate in such competitions.