almost all of them are exactly that: good job, excellent, etc – which is fine
This one surprised me and I appreciated it because I put a little extra into it.
A very nice comment in another class (which usually says “good job” etc was:
“I totally respect your insight to see above the original question. Keep up the great analysis.”
it was in biology and the question had to do with evolution. Most of the responses were, “Well it’s just a theory and as a Christian we don’t believe in etc…” so I included _my_ background there and made suggestions about the teaching of evolution in such a way that it could modernized to include computational evolutionary algorithms and their usefulness, so that even if someone might still disagree about evolution, they can AT LEAST appreciate the algorithms based upon evolution and their practical usefulness.