In real life there are people I just have to glance at to know that this person is not worth arguing with. On a forum you assume that people are otherwise reasonable. Defend yourself, by all means. But when you've hit the post button think of that weird guy next to the slot machine in Vegas. Don't let it linger.
You can read back the history of RoadStress in this thread - it doesn't matter what Spondoolies' position is, as long as they're not first then everything is a huge scam and conspiracy against that company. Spondoolies have been using him as their attack dog so they don't have to.