Apologies for my late evaluation of this topic. I've been very sick lately, and have barely been able to do the basic moderation of the site lately.
I'm honestly not really sure where this came from. Jerry, you have been a member of this site for some time, and I've never known you to get this angry about anything. I don't quite see what it is you believe was so wrong with Itai's answer, and I do not believe your disagreement with his assessment was really worth getting this upset over. I also do not quite see what you are describing regarding votes. You received a single down vote on your answer, and as it stands, you are only 1 point behind Itai who also received a single down vote. I see no evidence of extensive voting that would indicate Itai received more votes simply because he is popular...he only has ONE more vote on his answer than you do, and your answer was posted at a later date.
There is also no evidence that your single downvote was a "revenge" vote either. However it is well within Itai's rights to disagree with your assessment as much as you disagree with his, assuming he was even the one who cast the vote in the first place. I find it just as likely that the down vote you received had more to do with your attitude on that topic than anything else. While I don't believe such a reason for downvoting is helpful to the community at large, I can certainly understand the action.
Regarding the quality of your answer, the way you presented your argument makes it difficult to understand what you are getting at. As far as readers are concerned, they are viewing some anecdotal evidence put forward by someone who appears to have an axe to grind, more than an interest in offering useful help to the community. I'd offer that taking a photograph through the viewfinder via another camera, preferably one with macro capability, for both focusing screens, would go a LONG way towards proving your point with more viable evidence, as it would demonstrate the actual effect, rather than a the presumed consequence of the effect.
Finally, I heard when you asked for your account to be deleted. I have heard it several times now. You've provided a lot of answers on this site, a lot of valuable, worthwhile information. I'm honestly hoping this is just some moment in your life that is primarily driven by frustrating, external factors relative to this site. I'm hoping that there will be a point in the future when you wish to return. I am also loath to delete the account of a high reputation member that has provided so many answers. Deleting your account as thoroughly as you have requested would leave a gaping hole where all those answers are for nothing but an anonymous user. If in some time you still wish your account to be deleted, we can oblige, however I'll opt to do more of a "soft" delete rather than a complete destroy. If you choose to return in the future with a new account, I believe we could always merge the two and restore your previous status.