Okay, I quoted this one before I saw how old the thread was and that the OP dropped out somewhere along the way when it became clear the majority of people disagree with his assessment. I will refrain from repeating what everyone has already said.
Um, so I have only glanced at the anti dis a handful of times, mostly trying to figure out what it was after people like you mentioned it here. It seems like the insults you are flinging about HERE are what that board is all about. I fully admit I did not read this entire thread and after the first couple of pages scanned it to figure out why it came back up to the top--only to find that people hoping for the OP to come back with an update (in admittedly a not so nice, though I feel a bit justified, way) and these tirades are the reason for the bump.
You have had a week to cool your heals and reason out a comment to anything before that which might have offended you. Yet, you seem to think what you typed in the above posts is acceptable on the DIS

I really think it would be better of you let your frustrations out some other way and then post in a calmer manner--maybe some people will see your real point then and take it into consideration. The way your posts read now just turn people off and make you into the bad guy.
You also clearly have a lot of knowledge of things for someone with less than 20 posts. My guess is either you have been banned before for being so rude, or you have created an alternate persona to hide behind with these opinions. Neither makes me want to take you very seriously. Both just lead to me wanting to speculate over who might be doing this (probably not the reaction you are wanting, huh?).
The posts are so defensive they sound like the OP or OPs niece would be writing them. I hope not.
ETA--I went back and scanned your posts and the posts leading up to them in the thread. You start off so nice and well reasoned but were quick to turn defensive and judgmental yourself. I see I am far from the only one speculating about WHY this hits you so close to home (ie--why do you care THIS much unless you are one of the players). If you have lurked as long as you say, you will know that your posting style draws out more barbs and staying calm and polite will get you a much better outcome (much like the OPs niece would have had a much better chance of resolving things with her prof had she calmly and politely spoken to him about her schedule change at work from the get go instead of being rude and antagonistic in class).