Of course people can have their own opinions. Where did I ever say they couldn't? I prefer Rossi to Gideon myself. The thing I object to about wagrobanite tacking on a comment about how they're oh so happy that Gideon was replaced is that it's completely unnecessary and irrelevant to the main point of the post and reads to me like borderline bashing. If this was a post about the differences between the two characters and why they prefer one over the other containing examples like the one you gave, I honestly wouldn't have a problem.

ETA: Let me rephrase that last bit. I wouldn't have a problem provided it was intelligently written, well thought out and supported, and presented objectively and respectfully.