EBay Support: Two approaches to mathematics

This is what I wrote:
I think feedback would be more fair if you carried the rating to a further decimal point. For example, I have had only 1 negative feedback in 950 transactions but I have the same feedback as someone who has almost ten per thousand negative. A 99.99 would be more accurate and much more descriptive than a 99.9. Also, I think letting anyone remove bad feedback for any reason is wrong and defeats the purpose of the whole program. I paid for a couple hive tools over a month ago and still have not received them. The seller has a pretty good feedback but when you check on their negative feedback through Toolhaus, you see they have had several removed - this defeats the whole purpose of the system - to inform the buyer of frauds. Thanks for your consideration of these two matters.

This is their reply:
Thank you for writing eBay in regard to making your feedback 100 percent. I would like to take this opportunity to clarify how the math works with your feedback score. Essentially, we round the feedback percentage to the nearest tenth of a percent. Therefore, if the feedback percentage ends up being 99.95% or greater, then it will round up to 100%. However, the ratio required to maintain a 100% rating is 1999 unique positive comments for each unique negative comment. This would allow you to keep your feedback percentage at 100% in the feedback forum, even though in reality it is 99.95% or greater. It is my pleasure to assist you. Thank you for choosing eBay.