You have to understand, and it took me a while to get it myself, this is a Patriots message board. What kinds of people post incessantly on a message board? What kinds of qualities do you expect them to have?
Sure, there will be your handful of reasonable people, but there is a large contingent of unreasonable people. Folks who love to argue, folks who love to complain, and most of that group enjoys a good strawman argument.
They ignore the main rationale of the argument to attack some small trivial piece, they get into personal attacks, they question your "football knowledge"
Do not get baited into this type of nonsense, you will be happier. You cannot win these arguments, there are always new ways to get you to respond. Sure, it can be difficult, and sometimes you may be baited, but as a reasonable person, if you are indeed reasonable, you will be able to pull out before too much time and effort are expended.