EDIT: Now I see that you actually asked people to share their enchant succes in the original post, before other people misdirected the discussion to argue about the meaning of probability. I'm sorry I don't actually have any data for you because I never bothered enchanting my gear (too much grind for too low upgrade chance).
This was indeed the point of my post. I realize how small my sample size is, so I wanted to expand it. Still surprising every single example I know of has had more than 10 failures when in reality, 10 failures only have a 25% chance of happening. I'm personally at 15 and 17 failures with each having below a 10% chance of happening. It just seems very fishy so I wanted to collect more data. If it were only around 6 failures every time, the grind wouldn't be too bad and I might keep at it.
Sadly, not only are people not answering the question, but they are actively showing they don't understand how probabilities work by crying "RNG" out loud as if a 10% chance were the same as a 50% and the same as a 0.002%.