After the way you've been so rude and condescending to me, for nothing other than my ideas and political persuasion, I found your audacity phenomenally amazing that you would offer to purchase ANY of my items for sale given your previous behavior, comments, and negative reputation point against me. I was at a loss of words... Rather than replying "No, because you're an *******" I decided that saying "I reserve the right to refuse service to anyone" as it would be much more polite and cleaver.
If you're going to submit a negative reputation point to someone on this board, it should be based obvious truths, and the fact that the poster is completely wrong. Submitting a negative point based on emotion, and even insulting a person within the comments section is not what that system was implemented for, and doing so is immature and abuse of the forum.