Because I posted one post during my lunch period (25 minutes) and I found time to reply after school when I was done tutoring students while simultaneously advising a club meeting. (A lot of other things go into teaching- we don’t just show up, work a few hours, and go home- like a lot of people think.)
For much the same reasons stated in #16. I responded initially on my lunch hour after holding office hours all morning. Then I had classes all afternoon (BTW giving an exam in each class which I will be grading most of the weekend). I now have a break before my evening class. How is it that someone who is so obsessed with productivity can sit around and get upset because he didn't get an immediate response to a comment on a forum? Don't you have something else to do? Notice the teacher and professor did.
In response to your other comment, yes, there are lots of inefficiencies in public education. Perhaps, not as many as people commonly think but certainly schools could be more efficiently run. I have my children in a private, Christian school which provides a good education for a lower cost per student than public school can. However, that is because the teachers in the Christian school see their role as part of a ministry so their salaries are much lower than their public school counterparts. Since salaries are typically 75% or more of a school's budget, this is significant. Also, the school doesn't offer a lot of expensive services which the public schools are mandated to offer. While the public school administrative costs are typically unjustifiable, the inefficiencies in their operations are typically overstated.
I appreciated that you worked hard to get where you did but a lot of teachers did, too. In order for me to become qualified to become a tenure-track professor, I completed 10 years of college (3 degrees) and 6 years of that time I sacrified a full-time salary as a certified professional.